View allAll Photos Tagged System's
Light rain showers observed while on the road doing errands with my mom. Our area got some rain this day, but heavier rains have occurred, especially in the North Bay. We just got the tail end of this system's main rain band or so. We've been getting quite a lot of rain so far this month of March 2016!
Weather update/scenario/forecast:
Certainly, El Niño's March madness continues to bring more rain to thirsty California (despite receiving an abundance of rainfall from an atmospheric river event earlier in the month). Looking ahead, however, California was to see a multi-day break in the precipitation by early next week (and, if current forecasts hold, it should be a needed break from the heavy precipitation, though we still need a lot more rain to completely eliminate our drought!). There are some signs, luckily, that wet weather may return once again by the middle of the month. It’s worth noting that decaying El Niño events can lead to very active late winter and spring periods in California, and hopefully that’s where this year is headed. Indeed, a ‘Miracle March’ was imminent… though the long range weather forecasts were showing a prolonged break in the stormy pattern (drier weather) in the foreseeable future. Fingers crossed that we would continue to receive above average rainfall before the dry summer months arrive. We still have a long way to go in terms of relieving our prolonged drought here in the Golden State...
(Footage taken Saturday, March 12, 2016 around San Jose, CA)
On Saturday, October 7, more than 1,700 of Rochester Regional Health’s friends and employees gathered at the Joseph A. Floreano Rochester Riverside Convention Center for the system’s signature celebration.
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background (including material from fellow modeler Devilfish at whatifmodelers.com):
The SEPECAT Cheetah was a more sophisticated variable geometry wing derivative of the Anglo-French Jaguar attack aircraft, similar to the Su-7 and later Su-17/2022 evolution.
The Jaguar programme began in the early 1960s, in response to a British requirement for an advanced supersonic jet trainer to replace the Folland Gnat T1 and Hawker Hunter T7, and a French requirement (ECAT or École de Combat et d'Appui Tactique, "Tactical Combat Support Trainer") for a cheap, subsonic dual role trainer and light attack aircraft to replace the Fouga Magister, Lockheed T-33 and Dassault Mystère IV.
Cross-channel negotiations led to the formation of SEPECAT (Société Européenne de Production de l'Avion d'École de Combat et d'Appui Tactique – the "European company for the production of a combat trainer and tactical support aircraft") in 1966 as a joint venture between Breguet and the British Aircraft Corporation to produce the airframe.
Though based in part on the Breguet Br.121, using the same basic configuration and an innovative French-designed landing gear, the Jaguar as built also incorporated major elements designed by BAC – notably the wing and high lift devices. Production of the aircraft components would be split between Breguet and BAC and these would be assembled on two production lines; one in the UK and one in France.
The first of eight prototypes flew on 8 September 1968, a two-seat design fitted with the first production model Adour engine. The second prototype flew in February 1969; a total of three prototypes appeared in flight at the Paris Air Show that year. The first French "A" prototype flew in March 1969. In October a British "S" conducted its first flight.
A navalized "M" prototype flew in November 1969. The "M" had a strengthened airframe, an arrester hook and different undercarriage: twin nose wheel and single mainwheels. After testing in France it went to RAE at Thurleigh for carrier landing trials from their land based catapult. In July 1970 it made real take offs and landings from the French carrier Clemenceau.
The RAF accepted delivery of the first of 165 single-seat Jaguar GR1s (the service designation of the Jaguar S) in 1974, and it remained in service until 2007. Anyway, the Jaguar's all-weather capacity was limited and the airframe still offered development potential, so that from 1976 on the Anglo-French SEPECAT consortium looked at improved versions with radar, more powerful engines and improved avionics and aerodynamics.
This led in late 1975 to the Cheetah project, which incorporated a variable geometry wing that could be mounted to the Jaguar's airframe without major structural modifications.
The Cheetah was designed as a multirole, twin-engined aircraft designed to excel at low-level penetration of enemy defences, but also for battlefield reconnaissance and maritime patrol duties, and both naval and land-based versions were developed.
The Cheetah’s primary mission envisaged during the Cold War was the delivery of conventional and nuclear ordnance on the invading forces of the Warsaw Pact countries of Eastern Europe. Advanced navigation and flight computers, including the then-innovative fly-by-wire system, greatly reduced the workload of the pilot during low-level flight and eased control of the aircraft.
Compared with the Jaguar, the Cheetah’s nose section was widened to carry an Ericsson PS 37 X-band mono pulse radar, which used a mechanically steered parabolic dish housed in a radome. This radar performed several functions, including air-to-ground telemetry, search, track, terrain-avoidance and cartography. Air-to-air telemetry was also provided. This capability was not the system’s functional focus, but allowed the Cheetah to engage in all weather air-to-air combat and to act as a point defense interceptor with short range AAMs (e. g. up to six AIM-9 Sidewinder).
Honeywell provided an automatic digital flight control system for the Cheetah, one of the first such systems in a production aircraft. To assist low altitude flight and navigation, a Honeywell radar altimeter with transmitter and receiver was used, and the aircraft was also fitted with a Decca Type 72 Doppler navigation radar. TILS (Tactical Instrument Landing System), a landing-aid system made by Cutler-Hammer AIL, improved landing accuracy to 30 m.
From this basis, the Cheetah’s airframe was adapted to a naval version first, which featured a more rigid structure, a beefed-up landing gear for carrier operations and other suitable modifications. This evolved into the Cheetah FRS.1 for the Royal Navy. The FRS.1 was a separate development from the Jaguar, and catered to a very different specification. By the late 60's the Royal navy knew that their big carriers were due for scrapping and that plans for the proposed CVA 01 carrier were already being shelved. In a desperate attempt to hold on to naval air power, the Admiralty put forward a plan to buy two ex-US Navy Kittyhawk class supercarriers and refit them with British equipment (mostly salvaged from the outgoing carriers, Ark Royal and Eagle).
Because of the cancellation of TSR.2, the treasury, in a strange turn of events, agreed that air power at sea was definitively needed. They approved the acquisition of at first one, then later a second US carrier. To supplement them, two Centaur class carriers were to be retrofitted to act as tactical carriers to aid in smaller conflicts.
As these were not big enough to carry and deploy the larger American types being used on the supercarriers, a smaller multi-purpose aircraft was needed. With the Cheetah, BAC offered a version of the Jaguar, fitted with the variable geometry wing, then being designed for the MRCA, to aid with slower and shorter take offs and landings. Renamed the Cheetah, the FRS.1 entered service aboard the HMS Hermes in 1978, seeing service during the Falklands conflict in 1982.
The land-based Cheetah differed in many details from the naval version, though, the first prototype flew in early 1977 and the RAF’s GR.2 was primarily designed for the RAF Germany forces, since the continental theatre of operations was regarded as the most critical NATO flank of that time. The RAF Cheetahs were supposed to carry out conventional and nuclear point strikes against targets in the GDR, Poland and Czechoslovakia, and defend coastal lines against fast invasion fleets, esp. in the Baltic Sea.
The biggest visible difference to the FRS.1 was a different variable wing geometry mechanism and a modified wing shape with a dog tooth close to the pivot section and an extended leading edge fairing at the wing roots. The GR.2’s VG mechanism was more compact than the Tornado structure originally used in the FRS.1, but also simpler in order to save as much weight as possible.
The GR.2’s wings could be swept backwards between 16° and 72°, and the horizontal stabilizers were adapted in shape to form a quasi delta wing when the wings were fully swept back, allowing for minimal drag during the critical low-level dash towards a well-prepared enemy. The sweep angle could be altered manually by the pilot, but also automatically. The different VG wings basically improved low altitude aerodynamics and handling of the Cheetah, as well as its STOL capabilities. With its rugged undercarriage, lent from the Jaguar, the Cheetah GR.2 was, more than the bigger and heavier Tornado, suited for tactical front line service from improvised airstrips, together with the RAF’s Harrier fleet.
The Cheetah FRS.1 and the GR.2 carried the Jaguar’s pair of 30mm cannon, but due to the different wing structures the hardpoints for external ordnance differed. The Cheetah was typically equipped with a total of seven hardpoints: three underneath the fuselage, and more under the wings. The FRS.1 had four wing pylons which could, thanks to the Tornado ancestry, be swept together with the wings.
The GR.2’s capacity was more limited, as it carried two large tandem pylons under each wing root, each also carrying a launch rail for defensive AAMs, and a further pair of optional wing-mounted, fixed hardpoints. This facility was rarely used, though, and they were basically reserved for drop tanks for ferry flights, but could also take weapon racks. External ordnance capacity was similar to the original Jaguar, with 10,000 lb (4,500 kg).
The first Cheetah GR.2 entered RAF service in 1980, and replaced basically the RAF Buccaneers as well as an early part of the Jaguar GR.1 fleet (the Jaguars kept in service were later modernized to GR.3 standard).
The RAF Cheetahs served together with the Jaguar Force until 2007, when both types were retired. Following their retirement from flying service, some Cheetahs continue to serve as ground instructional airframes, most notably at RAF Cosford, used in the training of RAF fitters.
General characteristics:
Crew: One
Length: 16.83 m (55 ft 2½ in)
Wingspan: 13.97 m (45 ft 10 in) spread 16°, XXX swept 72°
Height: 4.89 m (16 ft 0½ in)
Wing area: 37.35 m² spread, 34.16 m² swept (402.05 ft² / 367.71 ft²)
Empty weight: 7,848 kg (17,286 lb)
Loaded weight: 12,200 kg (26,872 lb)
Max. takeoff weight: 15,700 kg (34,612 lb)
Powerplant:
2 × Rolls-Royce/Turbomeca Adour Mk 105 turbofans
with 24.50 kN (5,508 lbf) dry thrust each and 35.5 kN (7,979 lbf) with afterburner
Performance:
Maximum speed: Mach 1.8 (1,870 km/h, 1,161 mph) at 11,000 m (36,000 ft)
Mach 1.1 (1,350 km/h, 839 mph) at sea level
Combat radius: 908 km (490 nmi, 564 mi) (lo-lo-lo, external fuel)
Ferry range: 3,524 km (1,902 nmi, 2,190 mi)
Service ceiling: 14,000 m (45,900 ft)
Rate of climb: 200 m/s (39,400 ft/min)
Climb to 9,145 m (30,000 ft): 1 min 30 sec
Armament:
2× 30 mm (1.18 in) DEFA cannons in the lower front fuselage, 150 RPG
7 hardpoints; 1× center-line pylon stations Fore & Aft plus a pair of pylons in front of the main landing gear wells; twin inner pylon (Fore & Aft) plus launch rails for AAMs, and single Outer Pylon pair under the wings, non-moveable. Total capacity of 10,000 lb (4,500 kg) for a wide range of guided and unguided ordnance, including:
- Matra rocket pods with 18× SNEB 68 mm rockets each (up to seven at once)
- AS.37 Martel anti-radar missiles
- AS-30L laser guided air-to-ground missiles
- Various unguided or laser-guided bombs of up to 2.000 lb (907 kg) caliber
- 2× WE177A nuclear bombs
- 1× AN-52 nuclear bomb
- ECM protection pods
- Reconnaissance pods
- ATLIS laser/electro-optical targeting pod
- External drop tanks for extended range/loitering time
The kit and its assembly:
The final contribution to the “Cold War” Group Build at whatifmodelers.com, and another realization of a plan from the long agenda – and triggered by a similar build at the board from fellow modeler Devilfish who built a naval VG Jaguar with Tornado wings in 1:48. I took the opportunity and inspiration to build my interpretation of that theme, lending the Cheetah designation from Devilfish’s build, though, and some of the naval version’s background.
Anyway, my conversion plan had been different. I wanted to create an RAF aircraft, true to the Jaguar’s strike/recce role, and the VG mechanism and wings would come from a MiG-23 – inspired by a similar transplant with a Mirage F.1C I saw many moons ago (and a beautiful result, I want to try that stunt, too!).
I also had the donation kits stashed away: a Heller SEPECAT Jaguar A (actually, I had already piled up four kits for this task…) and an Academy MiG-23S.
Wing transplantation went straightforward and with surprisingly little difficulties. The MiG’s wings were cut out together with the spinal section and the lower wing gloves, so that the VG geometry remained unchanged. On the other side, this package went into a shallow gap that I carved out from the Jag’s ventral section. Some putty and body sculpting merged the parts, easier than expected.
The rest saw only minor modifications. A radome was implanted (from an Italeri F-18 Hornet), which needed some body sculpting around the nose and the MiG-23’s stabilizers were used, too, in order to form a clean wing shape. I tailored their trailing edges a bit, so that the shape would not remind too much of the MiG heritage.
An RAF style radar warning receiver, scratched from 1.5mm styrene, was installed into the French version’ fin. Under the wing roots a pair of pylons from a Matchbox F-14 were added, together with Sidewinder launch rails from a Tornado ADV (Italeri). The jet exhausts were drilled open for more depth, and some sensors/pitots added to the nose, made from wire. Cockpit and landing gear were taken OOB, even though I used a different ejection seat and faired the original dashboard over with a piece of styrene.
The BL 755 bombs and their twin racks come OOB from the Heller kit, the Sidewinders from an ESCI kit, IIRC.
Painting and markings:
The RAF was settled as an operator, but for a whiffy twist I applied the all-green scheme that the RAF’s Harrier GR.5 carried in the late Eighties – exclusively, AFAIK. While the all NATO Green upper side appears a bit dull, the Lichen Green underside and the very low waterline look rather psychedelic and unique. Anyway, it works well on the Cheetah, and I can imagine that other RAF aircraft would also look cool in this simple scheme?
The basic colors I used are Humbrol 105 (Army Green) and 120 (Light Green, FS 34227), both are pretty approximates. The basic paintwork was later panel-shaded with lighter mixes of these two tones – actually brightened up with RAF Cockpit Green (Humbrol 78). In fact, the Heller Jaguar is almost totally devoid of any surface detail... A light black ink wash was also used to emphasize edges and deepen the contrast. The wings’ leading edges were painted in a very dark green (Humbrol 91) and the cockpit interior was painted in dark grey (FS 36076 from Model Master). The landing gear struts were painted light grey, while the wells and covers became Zinc Chromate Yellow.
The decals are a mix of the OOB Heller sheet and aftermarket sheets for RAF Jaguars, an Italeri Tornado and a Harrier GR.5. A coat of matt acrylic varnish finally sealed everything and the ordnance was mounted.
An interesting conversion, and the result looks very plausible! I am certain that this thing would make people seriously wonder and think when displayed on a convention. The VG Jag looks very natural – but not much sexier than the original? Anyway, the transplantation does not look out of place, because the Jaguar’s layout is very similar to the Panavia Tornado, so that the VG wing does not appear like the total fake it actually is. ^^
NASA Administrator Jim Bridenstine, Kennedy Space Center Director Bob Cabana, and NASA astronauts Bob Behnken and Doug Hurley who are assigned to the company’s first test flight, and Mike Hopkins and Victor Glover who are assigned to the first operational mission for SpaceX’s Crew Dragon speak during a press conference ahead of the SpaceX Demo-1 mission, Friday, March 1, 2019 at the Kennedy Space Center in Florida. The Demo-1 mission will be the first launch of a commercially built and operated American spacecraft and space system designed for humans as part of NASA's Commercial Crew Program. The mission, currently targeted for a 2:49am launch on March 2, will serve as an end-to-end test of the system's capabilities. Photo Credit: (NASA/Joel Kowsky)
Старт (=Старт = Start) (logo stamped as Italics) means Start
Manufactured by KMZ ( Krasnogorsky Mekhanichesky Zavod = Mechanical Factory of Krasnogorsk), near Moscov, USSR
Model: 1963 Type 4c, ( produced between 1962-64)
All Start produced between 1958-64. Quantity: 76.503 units. There are 10 types
as to Alexandr Komarov
35 mm film SLR camera
Lens: KMZ Helios-44 (ГЕЛИОС) 58mm f//2, special bayonet mount, interchangeable; Serial no.0139286
Aperture: f/2-f/16, automatic diaphragm, DOF preview is possible by rotating the shutter release plunger on the lens
Focus range: 0.7- 20m +inf.
Focusing: by Fresnel matte glass screen with split-image rangefinder, focus ring and scale on the lens, w/DOF scale
Shutter: focal-plane shutter, horizontally run double rubberized silk curtain,
speeds: 1 - 1/1000 +B
Shutter release: knob on the right front of the camera, w/cable release socket
**Shutter can be released by a plunger on the lens also
Cocking lever: also winds the film, short stroke, on the right of the top plate
Frame counter: additive type, manual reset, on the winding lever knob
Viewfinder: SLR pentaprism, matte glass with split-image rangefinder in the central focusing area, 100% frame coverage, finder and screen are interchangeable, there is a waist level finder
Viewfinder release: by a small knob on the back of the top plate
Mirror: note instant return
Re-wind knob: on the left of the top plate, also used for multiple exposures
Re-wind release: small knob near the winding lever
Memory dial: on the rewind knob
Self timer: activates by a small silver knob over the self timer lever
Flash PC sockets: two, for X and M, on the left front of the top plate, synch: 1/30s, separate on the speeds dial
Back cover: detachable with the bottom plate, with a film pressure plate made of black glass,
opens by two pop-up levers on the bottom plate
Film loading: removable take-up spool, there is also a special receiving cartridge
Film-cutting knife: handle on the left of the top plate
Strap lugs
Tripod socket: old type 3/8''
Serial no. 6300258 (first two digits of the serial number indicate the production year)
As with other Soviet-era rangefinders, the shutter speed selector rotates when the shutter is released, and should not be changed until after the shutter has been cocked. If you change the shutter speed without cocking the shutter first, the setting pin can be broken when you advance the film and cock the shutter.
The Start is a very well made and interesting system SLR camera, and entirely mechanical. It was aimed at the professional market. At its era there is no other system camera in the Soviet Union.
It was often referred to as the "Russian Exakta". At that time Start was the only competition to the Exakta available within the Soviet Union and the Soviet-dominated part of Europe. It was at least in principle, the only other system camera, providing not only interchangeable lenses, but also finders and viewing screens.
Helios-44 58 mm f/2 is similar to the Zeiss Biotar. But unfortunately this is the Start system's only manufactured lens. There is an adapter for M39 screw mount Zenith lenses, but this was not an attractive option, as such lenses did not have automatic aperture system.
more info:
Fotoua by Alexandr Komarov, SovietCams, Wrotniaknet by Andrzej Wrotniak, Communist Cameras by Nathan Dayton, Cameras by Alfred Klomp, Btinternet by Stephen Rotery
Bell Telephone System's Earth Station at Andover, Maine The station was built for Project Telstar experiments on overseas telephone and television service via satellites in space. The radome is the largest air-inflated structure in the world and is 161 feet high and 210 feet across. It is made of fabric and synthetic rubber and if laid flat on the ground would cover 3 acres. Color photo by Dick Smith; published by Bromley & Company, Boston, Mass; printed by Mike Roberts, Berkeley, California; modern chrome card #C14109 (ME1270), not postally used, dates from 1960s (the site became operational in the spring of 1962) en.wikipedia.org/wiki/Andover_Earth_Station
Name: RV TRITON
IMO: 4906551
GT: 2291
Built: 2000
Type: Research / Survey Vessel
Notes: Moored Great Yarmouth, 30th January 2018.
Built by Vosper Thonycroft for the UK MOD and US Department of Defense as a test bed for other system's and designs.
From Wikipedia...
The MV Kalakala (pronounced kah-lah-kah-lah)[1] was a ferry that operated on Puget Sound from 1935 until her retirement in 1967.
Kalakala was notable for her unique streamlined superstructure, art deco styling, and luxurious amenities. The vessel was a popular attraction for locals and tourists, and was voted second only to the Space Needle in popularity among visitors to Seattle during the 1962 Seattle World's Fair. The ship is known as the world's first streamlined vessel for its unique art deco styling..
She was constructed in 1926 as Peralta for the Key System's ferry service on San Francisco Bay. On 6 May 1933 Peralta burned as a result of an arson fire at the terminal where she was moored, resulting in the complete destruction of her superstructure. The hull was still intact and on 12 October 1933 the vessel was sold to the Puget Sound Navigation Company (PSNC), also known by its marketing name, the "Black Ball Line". PSNC funded a refit to restore the vessel as a ferry.
In November 1934, William Thorniley, publicist for PSNC and president of the Olympic Peninsula Travel Association, named the new ferry Kalakala, which was said to mean "bird" in the Pacific Northwest Native American trade language Chinook Jargon.[3][4][5][6] Thorniley launched a national promotional campaign beginning with large billboard signs that simply said "KALAKALA!" Later, they said "KALAKALA, Seattle, WA" and featured a picture of the vessel as well.
The new bridge and wheelhouse were built entirely out of copper, from fear that the steel used in the rest of the vessel would interfere with the ship's compass.[7] Set back from her streamlined superstructure for aesthetics, it was impossible to see the bow of the vessel from the bridge. As visibility also depended on round portholes rather than a fully-glazed wheelhouse, she was known for being difficult to handle when docking.
Kalakala was well known for a heavy shaking vibration that ran throughout the vessel when in operation. This was probably due to poor alignment of the engines in the original construction of the vessel. When the propeller was replaced with a new 5-bladed version in 1956, the vibration was reduced by 40%.[8] Although the company wished the vessel to be known as the Silver Swan, the vessel soon attracted other, less complementary nicknames, including the Silver Slug, Silver Beetle, Galloping Ghost of the Pacific Coast, and, among Seattle's Scandinavian community, Kackerlacka, which means "cockroach"
In February 1946, Kalakala was issued Federal Communications Commission (FCC) license #001 for the first commercial radar syste
The Kalakala moored at Hylebos Waterway in Tacoma, Washington in November 2007.
After her retirement in 1967, the vessel was sold to a seafood processing company and towed to Alaska to work as a factory ship. After working as a crabbing ship for a couple of years, the Kalakala was beached in Kodiak, Alaska in 1970 and used to process shrimp.
Peter Bevis discovered the rusting hulk on a fishing trip in 1984. The Kalakala had been turned into a cannery and the internal structure had been reworked to create a building with cement floors, drywall, and ceiling tiles. After complicated financial negotiations and hard work, they managed to refloat her and tow her back to Seattle in 1998. The vessel has since been a source of controversy as her owners were unable to raise sufficient funds to refurbish the vessel or even to keep her moored in Seattle's Union Bay.
The vessel was sold in 2004 to a private investor, who moved her to an anchorage in Neah Bay provided by the Makah people. Soon after arriving at Neah Bay the Kalakala was evicted by the Makah, who also brought a lawsuit against the owners. The vessel has since been relocated to Tacoma, Washington.
In February 2008, Kalakala owner Steve Rodrigues announced his intention to acquire additional vintage ferry vessels and to restore them and the Kalakala as either ferries powered by wind and solar technologies or as museums. The Kalakala was scheduled for work on its hull and superstructure in dry dock in 2010,[11] but this never happened. After six years in Tacoma, the Kalakala began listing, and officials worried of environmental damage the ferry might pose.[12] The state had also passed a state law focusing on the removal of abandoned and/or neglected vessels in Washington state waterways so pressure is being applied to the owner to do something with the Kalakala.
Artistic projects
Several art projects arose from their fascination with the Kalakala, including a full-length album of solo cello compositions recorded onboard the vessel in November 2003, called "Songs From a Parallel Universe." There is also an as-yet unreleased film, also filmed on the Kalakala, about the "Ghost Dance."
There was also a live concert featuring the Icelandic band múm, Serena Tideman and Eyvind Kang, on board the Kalakala.
A temporary "pirate radio" station broadcasting from the Kalakala is featured in the 2005 documentary film "Pirate Radio."
Rainy, unsettled weather finally makes a return to California after observing a very dry February! Not only rain was making a return, we were in for a lot of it! Although we were still in a drought, all this rain was to create hazardous conditions... It may be too much of a good thing...
Weather scenario & details:
A parade of storms, or an atmospheric river event, was in store for California for early March 2016... Despite a very dry and mild February, a major pattern change toward a much wetter weather pattern was on the way. As a prelude to the unsettled weather, weaker weather systems was to bring light precipitation before the actual storm event. Then here it starts: a much stronger system was forecast to hit by the first weekend of the month, bringing heavy rain, gusty winds, and heavy mountain snow. Wind and flood advisories were also issued with the first strong system of the series. A 1st system's strong cold front was to approach the Bay Area by Saturday afternoon. Strong southerly winds were to develop Saturday afternoon and continue thru the evening as the front passes thru. Winds gusts of 35-50 mph were possible, where downed trees and power outages were likely. As these storms roll ashore, the winds would also pick up. While this rain was to help replenish depleted water reservoirs and put a dent in the long-standing drought, the large amount of rain in a short time frame would lead to flooding and mudslides. Despite its drawbacks, the rainfall was beneficial to the state's water supply.
More info (involving El Niño)/looking ahead:
Just as many appeared to give up on El Niño, especially after seeing such a dry February, a strong winter storm had brought copious rainfall to drought-parched California. A series of storms were aimed at the state. Impacts from the 1st strong system brought heavy rain & wind to my area in San Jose, CA. The 2nd system was expected to arrive by Sunday night and into Monday. At the time, the system looked to be a bit stronger, bringing in more possible heavy rain, according to forecasters. More rain was in store for NorCal in the foreseeable future. Looks like this was El Nino's last hurrah this winter! Is 'Miracle-March' really coming true? Drive safe and stay dry out there, guys.
(Footage filmed Saturday, March 5, 2016 from around San Jose, CA)
**Full video version here:
another stab at testing AI's creative abilities - write me a short story around "butterfly effect" based on the photo
all AIs produced cliched, generic rubbish. So, writers, the good ones, you can sleep in peace, at least for the time being, your job is secure. Accountants, lawyers and GPs will be wiped out together with web designers and deservedly so, but writers, the good ones will endure together with plumbers and bricklayers , at least next 5 to 7 years.
Ok , let's see if I can come up with some stuff comparable to AI's bs , I bet I can
===
so my reply to AI
February 8th 2025. Auckland, New Zealand. Butterfly Creek. 11.25 am. A man with a camera, late boomer vintage, the man not the camera. He might be just sneaking through into the boomers cohort with a year or two to spare. The camera, Nikon z5 with a decent zoom, not the one “a professional” would be gear-shamed into buying but still a step up above your average grandkids shots gear. The camera suggest the man fancies himself as a photographer. Must be one of those Flickr types. The man is glued to the viewfinder, the lens is tracking a butterfly. The butterfly is doing one of those neurotic - “I can’t commit” - butterfly dances, teasing a leaf or a flower only to change its mind and flutter away to another flower or a leaf. A girl is also watching the butterfly. The butterfly seems finally made up its mind to settle on a leaf, the man with the camera steadied his breathing preparing to take a shot. Beating the shutter by a split second the butterfly takes off and lands on the girl’s palm. The man takes his shot.
July 2047. 4.35 pm. Prakesh just finished his daily security scrub of the quantum cluster, a routine check that never revealed anything of note, not on Prakesh’s watch anyway. Quantum servers got to be essentially unbreakable and impossible to compromise these days and The System’s stability, or rather instability, had become a concept of the past. AI1 designed The System and other AIs (the breakers) tasked to break it. If the breakers failed to disrupt they self destroyed. If they succeeded to disrupt AI1 destroyed the breakers and The System and started from scratch.
Prakesh was looking forward to a night out with Danika. New Japanese restaurant by none other than Kenji X himself in downtown Mumbai, you have to book 3 weeks in advance. Prakesh’s mum loves to go on how young ones lost respect to Indian food and tradition, “your Danika can’t even tell Roti from the Naan, can she?! “
Prakesh brushed the air with his index finger in a W shape, a touchless sign out from the system, the shape complements the eye scan and the fingerprint scan of the admin of course, when the log out sequence momentarily paused and a tiny amber flickering light appeared in the top right corner of the virtual screen. The light flickered for 7 seconds then stayed solid for another 7 then started the string of on and offs, each on and off lasting 3 seconds. Prakesh felt his scull suddenly becoming almost unbearably heavy as if they put a lead helmet on him. For a moment he was unable to breath. He knew exactly what was going on and the choice he would have to make. He knew all along it may happen and he was trained for 7 years preparing for this moment before taking the position he contested with 3 other best graduates of The Programme, 1 male and 2 female. He prayed daily this moment and this choice never comes. There will be 50 on and 50 off signals in total , that gives him 300 seconds before ... The system went into a fatal spiral cycle, the cycle will inevitably end up in UAE (Universal Annihilation Event). There are only 2 choices to prevent UAE: relinquish all control over The System to AI11 - humanity becomes secondary with no control over its own future but humanity survives, at least if AI1 thinks it should. Or destroy The System, destroy AI1 and let humanity live - live without the power of The System, live, again, without being able to cure cancer, to halt global warming, to stop aging, to create abundance and prosperity. Live taking a gamble, again, between self destruction and the future.
285, 286, 287 ... It took Prakesh 12 seconds to regain composure and start the critical phase reasoning process. His reasoning process, having taken all, so many times planned and practised, 4 minutes, resulted in no decision. He presented himself with 50-50 split. 13 seconds from the Earth being dispersed in a giant cloud of dust he had nothing at all left to guide his choice. 9 seconds out a a cloud, a vision floated by. He first almost didn’t notice this puff of memory. He made himself to stop it and focus, an old photograph he saw years ago on one of the legacy “websites” , The Programme did have a few of those in the library. The photograph of the girl with a butterfly in the palm of her hand. He immeditely pressed one of the 2 virtual buttons in front of him. 299.
As NASA's Orion spacecraft approaches the Moon on the Artemis III mission to put the first woman and next man on the lunar surface, the crew will get a glimpse through the spacecraft’s windows.
The first element machined for the Artemis III Orion crew module – a cone panel with openings for windows which will provide that spectacular view – was designed by Orion’s lead contractor, Lockheed Martin, and manufactured by AMRO Fabricating Corp., of South El Monte, California. The completed panel is on its way to NASA’s Michoud Assembly Facility near New Orleans, Louisiana, where engineers will weld it with other panels as part of Orion’s pressure vessel.
“It’s truly exciting to have the first piece of the Artemis III Orion spacecraft completed at AMRO that will enable American astronauts to build a sustainable presence on the lunar surface,” said Acting Orion Program Manager Howard Hu.
In addition to machining elements for Orion’s crew module, AMRO manufactures the panels for the core stage, launch vehicle stage adapter, and the Orion stage adapter for NASA’s Space Launch System (SLS) rocket that will send Orion to the Moon during Artemis missions.
Orion, SLS, and Exploration Ground Systems (EGS) programs are foundational elements of the Artemis program, beginning with Artemis I, the first integrated flight test of Orion and SLS next year. Artemis II will follow with the system’s first crewed mission, taking humans farther into space than ever before.
Human exploration of the Moon under the Artemis program offers a unique opportunity to test, refine, and perfect many of the technologies and complex operations that will be needed to land humans on Mars, perform their work on the surface and safely return them to Earth.
Together, Orion, SLS and EGS are using suppliers in all 50 states, Washington D.C., and Puerto Rico – almost half of which are small businesses. These suppliers are creating jobs, reinvigorating manufacturing, and promoting American innovation in our aerospace industrial base and beyond through their work on NASA’s exploration programs.
Image Credit: AMRO Fabricating Corp.
"The Graveyard of Beta Pavonis is truly an awesome sight. Countless thousands of derelict ships endlessly circle the lifeless globe of the system's only planet. Almost all the craft originate from beyond the known Galaxy and those that have been identified come from many periods of history. One of the most remarkable of these is the ancient and almost intact Space Shuttle, which operated in the first days of spaceflight before the Federation had even been formed."
Bo' Bo'-de, ČKD, Praha, Typ: ČSD-Baureihe T 478.1, installierte Leistung: 1103 kW (1.500 PS), Vmax: 100 km/h
Produktionszeitraum: 1966-71
gebaute Stückzahl: Anzahl: T 478.1: 230; T 478.2: 82
Die Güterzugvariante T 478.2 hatte an Stelle des Dampfgenerators ein Ballastgewicht.
1988 erhielten die Loks der ČD die neuen Baureihennummern 751 bzw. 752 mit dreistelliger Ordnungsnummer. Die 1992-96 von der ČD grundlegend modernisierten 60 Lokomotiven wurden als Reihe 749 bezeichnet. Bei der Modernisierung wurden u.a. die Dampfheizanlage bzw. das Ballastgewicht durch eine elektrische Zugheizung mit 3000 V Gleichspannung ersetzt.
Das EVU Rail System s.r.o. des Speditionsunternehmers Josef Hanzalík führt seit dem 28.08.2012 als Mattoni-Express Schienentransporte für die Mineralwassser-Marke Mattoni der Karlovarské minerální vody (KMV) auf der acht Kilometer langen Anschlussbahn im Egertal von der ehemaligen Kurstadt Kyselka - Gießhübl-Sauerbrunn nach Vojkovice nad Ohří - Wickwitz durch. Etwa ein Drittel der Gesamtproduktion von Mattoni wird seitdem wieder mit der Bahn abgefahren.
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based on historical facts. BEWARE!
Some background:
The Grumman Mohawk began as a joint Army-Marine program through the then-Navy Bureau of Aeronautics (BuAer), for an observation/attack plane that would outperform the light and vulnerable Cessna L-19 Bird Dog. In June 1956, the Army issued Type Specification TS145, which called for the development and procurement of a two-seat, twin turboprop aircraft designed to operate from small, unimproved fields under all weather conditions. It would be faster, with greater firepower, and heavier armor than the Bird Dog, which had proved very vulnerable during the Korean War.
The Mohawk's mission would include observation, artillery spotting, air control, emergency resupply, naval target spotting, liaison, and radiological monitoring. The Navy specified that the aircraft had to be capable of operating from small "jeep" escort class carriers (CVEs). The DoD selected Grumman Aircraft Corporation's G-134 design as the winner of the competition in 1957. Marine requirements contributed an unusual feature to the design: since the Marines were authorized to operate fixed-wing aircraft in the close air support (CAS) role, the mockup featured underwing pylons for rockets, bombs, and other stores, and this caused a lot of discord. The Air Force did not like the armament capability of the Mohawk and tried to get it removed. On the other side, the Marines did not want the sophisticated sensors the Army wanted, so when their Navy sponsors opted to buy a fleet oil tanker, they eventually dropped from the program altogether. The Army continued with armed Mohawks (and the resulting competence controversy with the Air Force) and also developed cargo pods that could be dropped from underwing hard points to resupply troops in emergencies.
In mid-1961, the first Mohawks to serve with U.S. forces overseas were delivered to the 7th Army at Sandhofen Airfield near Mannheim, Germany. Before its formal acceptance, the camera-carrying AO-1AF was flown on a tour of 29 European airfields to display it to the U.S. Army field commanders and potential European customers. In addition to their Vietnam and European service, SLAR-equipped Mohawks began operational missions in 1963 patrolling the Korean Demilitarized Zone.
Germany and France showed early interest in the Mohawk, and two OV-1s were field-tested by both nations over the course of several months. No direct orders resulted, though, but the German Bundesheer (Army) was impressed by the type’s performance and its capability as an observation and reconnaissance platform. Grumman even signed a license production agreement with the French manufacturer Breguet Aviation in exchange for American rights to the Atlantic maritime patrol aircraft, but no production orders followed.
This could have been the end of the OV-1 in Europe, but in 1977 the German government, primarily the interior ministry and its intelligence agency, the Bundesnachrichtendienst (BND), showed interest in a light and agile SIGINT/ELINT platform that could fly surveillance missions along the inner-German border to the GDR and also to Czechoslovakia. Beyond visual reconnaissance with cameras and IR sensors, the aircraft was to be specifically able to identify and locate secret radio stations that were frequently operated by Eastern Block agents (esp. by the GDR) all across Western Germany, but primarily close to the inner-German border due to the clandestine stations’ low power. The Bundeswehr already operated a small ELINT/ECM fleet, consisting of converted HFB 320 ‘Hansa’ business jets, but these were not suited for stealthy and inconspicuous low flight level missions that were envisioned, and they also lacked the ability to fly slowly enough to locate potential “radio nests”.
The pan and the objective were clear, but the ELINT project caused a long and severe political debate concerning the operator of such an aerial platform. Initially, the Bundesheer, who had already tested the OV-1, claimed responsibility, but the interior ministry in the form of the German customs department as well as the German police’s Federal Border Guard, the Bundesgrenzschutz and the Luftwaffe (the proper operator for fixed-wing aircraft within the German armed forces), wrestled for this competence. Internally, the debate and the project ran under the handle “Schimmelreiter” (literally “The Rider on the White Horse”), after a northern German legendary figure, which eventually became the ELINT system’s semi-official name after it had been revealed to the public. After much tossing, in 1979 the decision was made to procure five refurbished U.S. Army OV-1As, tailored to the German needs and – after long internal debates – operate them by the Luftwaffe.
The former American aircraft were hybrids: they still had the OV-1A’s original short wings, but already the OV-1D’s stronger engines and its internal pallet system for interchangeable electronics. The machines received the designation OV-1G (for Germany) and were delivered in early 1980 via ship without any sensors or cameras. These were of Western German origin, developed and fitted locally, tailored to the special border surveillance needs.
The installation and testing of the “Schimmelreiter” ELINT suite lasted until 1982. It was based on a Raytheon TI Systems emitter locator system, but it was locally adapted by AEG-Telefunken to the airframe and the Bundeswehr’s special tasks and needs. The system’s hardware was stowed in the fuselage, its sensor arrays were mounted into a pair of underwing nacelles, which occupied the OV-1’s standard hardpoints, allowing a full 360° coverage. In order to cool the electronics suite and regulate the climate in the internal equipment bays, the OV-1G received a powerful heat exchanger, mounted under a wedge-shaped fairing on the spine in front of the tail – the most obvious difference of this type from its American brethren. The exact specifications of the “Schimmelreiter” ELINT suite remained classified, but special emphasis was placed upon COMINT (Communications Intelligence), a sub-category of signals intelligence that engages in dealing with messages or voice information derived from the interception of foreign communications. Even though the “Schimmelreiter” suite was the OV-1Gs’ primary reconnaissance tool, the whole system could be quickly de-installed for other sensor packs and reconnaissance tasks (even though this never happened), or augmented by single modules, what made upgrades and mission specialization easy. Beyond the ELINT suite, the OV-1G could be outfitted with cameras and other sensors on exchangeable pallets in the fuselage, too. This typically included a panoramic camera in a wedge-shaped ventral fairing, which would visually document the emitter sensors’ recordings.
A special feature of the German OV-1s was the integration of a brand new, NATO-compatible “Link-16” data link system via a MIDS-LVT (Multifunctional Information Distribution System). Even though this later became a standard for military systems, the OV-1G broke the ground for this innovative technology. The MIDS was an advanced command, control, communications, computing and intelligence (C4I) system incorporating high-capacity, jam-resistant, digital communication links for exchange of near real-time tactical information, including both data and voice, among air, ground, and sea elements. Outwardly, the MIDS was only recognizable through a shallow antenna blister behind the cockpit.
Even though the OV-1Gs initially retained their former American uniform olive drab livery upon delivery and outfitting in German service, they soon received a new wraparound camouflage for their dedicated low-level role in green and black (Luftwaffe Norm 83 standard), which was better suited for the European theatre of operations. In Luftwaffe service, the OV-1Gs received the tactical codes 18+01-05 and the small fleet was allocated to the Aufklärungsgeschwader (AG) 51 “Immelmann”, where the machines formed, beyond two squadrons with RF-4E Phantom IIs, an independent 3rd squadron. This small unit was from the start based as a detachment at Lechfeld, located in Bavaria/Southern Germany, instead of AG 51’s home airbase Bremgarten in South-Western Germany, because Lechfeld was closer to the type’s typical theatre of operations along Western Germany’s Eastern borders. Another factor in favor of this different airbase was the fact that Lechfeld was, beyond Tornado IDS fighter bombers, also the home of the Luftwaffe’s seven HFB 320M ECM aircraft, operated by the JaBoG32’s 3rd squadron, so that the local maintenance crews were familiar with complex electronics and aircraft systems, and the base’s security level was appropriate, too.
With the end of the Cold War in 1990, the OV-1Gs role and field of operation gradually shifted further eastwards. With the inner-German Iron Curtain gone, the machines were now frequently operated along the Polish and Czech Republic border, as well as in international airspace over the Baltic Sea, monitoring the radar activities along the coastlines and esp. the activities of Russian Navy ships that operated from Kaliningrad and Saint Petersburg. For these missions, the machines were frequently deployed to the “new” air bases Laage and Holzdorf in Eastern Germany.
In American service, the OV-1s were retired from Europe in 1992 and from operational U.S. Army service in 1996. In Germany, the OV-1 was kept in service for a considerably longer time – with little problems, since the OV-1 airframes had relatively few flying hours on their clocks. The Luftwaffe’s service level for the aircraft was high and spare parts remained easy to obtain from the USA, and there were still OV-1 parts in USAF storage in Western German bases.
The German HFB 320M fleet was retired between 1993 and 1994 and, in part, replaced by the Tornado ECR. At the same time AG 51 was dissolved and the OV-1Gs were nominally re-allocated to JaboG 32/3. With this unit the OV-1Gs remained operational until 2010, undergoing constant updates and equipment changes. For instance, the machines received in 1995 a powerful FLIR sensor in a small turret in the aircraft’s nose, which improved the aircraft’s all-weather reconnaissance capabilities and was intended to spot hidden radio posts even under all-weather/night conditions, once their signal was recognized and located. The aircrafts’ radio emitter locator system was updated several times, too, and, as a passive defensive measure against heat-guided air-to-air missiles/MANPADS, an IR jammer was added, extending the fuselage beyond the tail. These machines received the suffix “Phase II”, even though all five aircraft were updated the same way.
Reports that the OV-1Gs were furthermore retrofitted with the avionics to mount and launch AIM-9 Sidewinder AAMs under the wing tips for self-defense remained unconfirmed, even more so because no aircraft was ever seen carrying arms – neither the AIM-9 nor anything else. Plans to make the OV-1Gs capable of carrying the Luftwaffe’s AGM-65 Maverick never went beyond the drawing board, either. However, BOZ chaff/flare dispenser pods and Cerberus ECM pods were occasionally seen on the ventral pylons from 1998 onwards.
No OV-1G was lost during the type’s career in Luftwaffe service, and after the end of the airframes’ service life, all five German OV-1Gs were scrapped in 2011. There was, due to worsening budget restraints, no direct successor, even though the maritime surveillance duties were taken over by Dornier Do 228/NGs operated by the German Marineflieger (naval air arm).
General characteristics:
Crew: Two: pilot, observer/systems operator
Length: 44 ft 4 in (13.53 m) overall with FLIR sensor and IR jammer
Wingspan: 42 ft 0 in (12.8 m)
Height: 12 ft 8 in (3.86 m)
Wing area: 330 sq. ft (30.65 m²)
Empty weight: 12,054 lb (5,467 kg)
Loaded weight: 15,544 lb (7,051 kg)
Max. takeoff weight: 18,109 lb (8,214 kg)
Powerplant:
2× Lycoming T53-L-701 turboprops, 1,400 shp (1,044 kW) each
Performance:
Never exceed speed: 450 mph (390 knots, 724 km/h)
Maximum speed: 305 mph (265 knots, 491 km/h) at 10,000 ft (3,050 m)
Cruise speed: 207 mph (180 knots, 334 km/h) (econ cruise)
Stall speed: 84 mph (73 knots, 135 km/h)
Range: 944 mi (820 nmi, 1,520 km) (SLAR mission)
Service ceiling: 25,000 ft (7,620 m)
Rate of climb: 3,450 ft/min (17.5 m/s)
Armament:
A total of eight external hardpoints (two ventral, three under each outer wing)
for external loads; the wing hardpoints were typically occupied with ELINT sensor pods, while the
ventral hardpoints frequently carried 300 l drop tanks to extend loiter time and range;
Typically, no offensive armament was carried, even though bombs or gun/missile pods were possible.
The kit and its assembly:
This build became a submission to the “Reconnaissance” Group Build at whatifmodellers.com in July 2021, and it spins further real-world events. Germany actually tested two OV-1s in the Sixties (by the German Army/Bundesheer, not by the air force), but the type was not procured or operated. The test aircraft carried a glossy, olive drab livery (US standard, I think) with German national markings.
However, having a vintage Hasegawa OV-1A in the stash, I wondered what an operational German OV-1 might have looked like, especially if it had been operated into the Eighties and beyond, in the contemporary Norm 83 paint scheme? This led to this purely fictional OV-1G.
The kit was mostly built OOB, and the building experience was rather so-so – after all, it’s a pretty old mold/boxing (in my case the Hasegawa/Hales kit is from 1978, the mold is from 1968!). Just a few things were modified/added in order to tweak the standard, short-winged OV-1A into something more modern and sophisticated.
When searching for a solution to mount some ELINT sensor arrays, I did not want to copy the OV-1B’s characteristic offset, ventral SLAR fairing. I rather settled for the late RV-1D’s solution with sensor pods under the outer wings. Unfortunately, the OV-1A kit came with the type’s original short wings, so that the pods had to occupy the inner underwing pair of hardpoints. The pods were scratched from square styrene profiles and putty, so that they received a unique look. The Mohawk’s pair of ventral hardpoints were mounted, but – after considering some drop tanks or an ECM pod there - left empty, so that the field of view for the ventral panoramic camera would not be obscured.
Other small additions are some radar warning sensor bumps on the nose, some extra antennae, a shallow bulge for the MIDS antenna on the spine, the FLIR turret on the nose (with parts from an Italeri AH-1 and a Kangnam Yak-38!), and I added a tail stinger for a retrofitted (scratched) IR decoy device, inspired by the American AN/ALG-147. This once was a Matchbox SNEB unguided missile pod.
Painting and markings:
For the intended era, the German Norm 83 paint scheme, which is still in use today on several Luftwaffe types like the Transall, PAH-2 or CH-53, appeared like a natural choice. It’s a tri-color wraparound scheme, consisting of RAL 6003 (Olivgrün), FS 34097 (Forest Green) and RAL 7021 (Teerschwarz). The paints I used are Humbrol 86 (which is supposed to be a WWI version of RAL 6003, it lacks IMHO yellow but has good contrast to the other tones), Humbrol 116 and Revell 9. The pattern itself was adapted from the German Luftwaffe’s Dornier Do 28D “Skyservants” with Norm 83 camouflage, because of the type’s similar outlines.
A black ink washing was applied for light weathering, plus some post-shading of panels with lighter shades of the basic camouflage tones for a more plastic look. The cockpit interior was painted in light grey (Humbrol 167), while the landing gear and the interior of the air brakes became white. The scratched SLAR pods became light grey, with flat di-electric panels in medium grey (created with decal material).
The cockpit interior was painted in a rather light grey (Humbrol 167), the pilots received typical olive drab Luftwaffe overalls, one with a white “bone dome” and the other with a more modern light grey helmet.
The decals were improvised. National markings and tactical codes came from TL Modellbau sheets, the AG 51 emblems were taken from a Hasegawa RF-4E sheet. The black walkways were taken from the Mohak’s OOB sheet, the black de-icer leading edges on wings and tail were created with generic black decal material. Finally, the model was sealed with a coat of matt acrylic varnish (Italeri).
An interesting result, and the hybrid paint scheme with the additional desert camouflage really makes the aircraft an unusual sight, adding to its credibility.
Members of the media visited the International Space Station Processing Facility "high bay" on August 11, 2017 to view the Space Launch System's Interim Cryogenic Propulsion Stage (ICPS). Representative from NASA and Boeing were on hand to answer questions.
The Interim Cryogenic Propulsion Stage (ICPS) is the first segment for NASA's Space Launch System (SLS) rocket to arrive at the agency's Kennedy Space Center in Florida and is currently in the Space Station Processing Facility. The ICPS will be located at the very top of the SLS, just below the Orion capsule. During Exploration Mission-1, NASA's first test mission of the SLS rocket and Orion, the ICPS, filled with liquid oxygen and liquid hydrogen, will give Orion the big in-space push needed to fly beyond the Moon before returning to Earth. The ICPS was designed and built by ULA in Decatur, Alabama, and Boeing in Huntsville, Alabama.
(Photos by Michael Seeley / We Report Space)
When geek woke up from the drunken stupor of the previous evening, he found he'd acquired himself a lady friend, one who was not put off by his love of diagrams of the Starship Enterprise's transporter system's inner wiring.
Finally geek had found someone to share his orange squash with. No longer would there just be static at the other end of the line when he played with his Spiderman two-way pocket radio, finally here was someone willing to sit and hold his hand during a tricky game of online Risk.
Knowing that he had to make the effort, geek pulled out all the stops. He had a haircut, ironed the turn-ups on his jeans and put on his best geek shirt. The one with no curry stains down the front. No obvious ones anyway. He packed his lunchbox with the most romantic food he could think of (including cheese and chutney sandwiches in the shape of hearts) and set off for his date with destiny.
Needless to say, he emptied his lunchbox.
Lipstick brushes can be found here.
Check out the whole set here - it's the geeky thing to do.
Strobist info: SB600 to camera right at full power bounced off the ceiling. Flash head angled at 60 degrees.
On January 14, 2008, NASA’s MESSENGER spacecraft performed its first flyby of the solar system’s innermost planet. The spacecraft captured images of parts of Mercury’s surface that planetary scientists had never seen, which will allow them to understand more about the planet’s formation and geologic history. Mercury has the oldest surface of all the planets, and its history is written on its face: enormous impact craters, smooth plains that may be lava fields, and long escarpments that may reveal fault lines.
Because Mercury is so close to the Sun, getting a spacecraft into orbit around the planet poses special challenges—and unusually high amounts of fuel to control the spacecraft’s trajectory. MESSENGER’s flight path includes multiple planetary flybys, which use the planets’ gravity to adjust the spacecraft’s trajectory without fuel. Messenger completed its flyby of Earth on August 2, 2005. In exchange for the gravity assist Earth provided, MESSENGER sent back a picture postcard of our home planet. South America sits in the center of the globe, tilted to the right.
MESSENGER is the first orbital mission to Mercury; previous observations were only collected by flybys during the Mariner 10 mission. Why Mercury? describes the science objectives of the MESSENGER mission. The MESSENGER Gallery provides additional images and animations.
The Space Shuttle orbiter is the spaceplane component of the Space Shuttle, a partially reusable orbital spacecraft system that was part of the discontinued Space Shuttle program. Operated from 1977 to 2011 by NASA, the U.S. space agency, this vehicle could carry astronauts and payloads into low Earth orbit, perform in-space operations, then re-enter the atmosphere and land as a glider, returning its crew and any on-board payload to the Earth.
Six orbiters were built for flight: Enterprise, Columbia, Challenger, Discovery, Atlantis, and Endeavour. All were built in Palmdale, California, by the Pittsburgh, Pennsylvania-based Rockwell International company. The first orbiter, Enterprise, made its maiden flight in 1977. An unpowered glider, it was carried by a modified Boeing 747 airliner called the Shuttle Carrier Aircraft and released for a series of atmospheric test flights and landings. Enterprise was partially disassembled and retired after completion of critical testing. The remaining orbiters were fully operational spacecraft, and were launched vertically as part of the Space Shuttle stack.
Columbia was the first space-worthy orbiter; it made its inaugural flight in 1981. Challenger, Discovery, and Atlantis followed in 1983, 1984, and 1985 respectively. In 1986, Challenger was destroyed in an accident shortly after its 10th launch. Endeavour was built as Challenger's successor, and was first launched in 1992. In 2003, Columbia was destroyed during re-entry, leaving just three remaining orbiters. Discovery completed its final flight on March 9, 2011, and Endeavour completed its final flight on June 1, 2011. Atlantis completed the final Shuttle flight, STS-135, on July 21, 2011.
In addition to their crews and payloads, the reusable orbiter carried most of the Space Shuttle System's liquid-propellant rocket system, but both the liquid hydrogen fuel and the liquid oxygen oxidizer for its three main rocket engines were fed from an external cryogenic propellant tank. Additionally, two reusable solid rocket boosters (SRBs) provided additional thrust for approximately the first two minutes of launch. The orbiters themselves did carry hypergolic propellants for their Reaction Control System (RCS) thrusters and Orbital Maneuvering System (OMS) engines.
Wikipedia: <a href="https://en.wikipedia.org/wiki/Space_Shuttle_orbiter" rel="noreferrer nofollow">en.wikipedia.org/wiki/Space_Shuttle_orbiter</a>
This is the a Soviet-designed, high-altitude air defense system S-75 Dvina also known as the SA-2 Guideline. Instructions available at www.snakebyte.dk/lego/instructions/military/s-75_dvina/in...
The instructions are created by Knud A. Albrechtsen
Size: 1/32
Color: Dark Gray and Light Bluish Gray
A former Conrail/PC/NH/VGN E33 sits in GE Transportation System's back lot adjacent to a former BCOL M630 in July 1991.
Canadian Pacific diesels were no stranger to the ET&HK Ide grain elevator in St. Johnsbury, Vermont for decades, but that came to an end with CP's withdrawal from the area in 1996. However, the current operator of the line, Vermont Rail System's Washington County RR, began to pool locomotives when needed with CP in the summer of 2023, giving me an opportunity to shoot a CP diesel passing the elevator.
+++ DISCLAIMER +++
Nothing you see here is real, even though the model, the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
In the aftermath of the Second World War, Sweden required a strong air defense, utilizing the newly developed jet propulsion technology. This led to a pair of proposals being issued by the Saab design team, led by Lars Brising. The first of these, codenamed R101, was a cigar-shaped aircraft, which bore a resemblance to the American Lockheed P-80 Shooting Star. The second design, which would later be picked as the winner, was a barrel-shaped design, codenamed R 1001, which proved to be both faster and more agile upon closer study.
The original R 1001 concept had been designed around a mostly straight wing, but after Swedish engineers had obtained German research data on swept-wing designs, the prototype was altered to incorporate a 25° sweep. In order to make the wing as thin as possible, Saab elected to locate the retractable undercarriage in the aircraft's fuselage rather than into the wings.
Extensive wind tunnel testing performed at the Swedish Royal University of Technology and by the National Aeronautical Research Institute had also influenced aspects of the aircraft's aerodynamics, such as stability and trim across the aircraft's speed range. In order to test the design of the swept wing further and avoid any surprises, it was decided to modify a single Saab Safir. It received the designation Saab 201 and a full-scale R 1001 wing for a series of flight tests. The first 'final' sketches of the aircraft, incorporating the new information, was drawn in January 1946.
The originally envisioned powerplant for the new fighter type was the de Havilland Goblin turbojet engine. However, in December 1945, information on the newer and more powerful de Havilland Ghost engine became available. The new engine was deemed to be ideal for Saab's in-development aircraft, as not only did the Ghost engine had provisions for the use of a central circular air intake, the overall diameter of the engine was favorable for the planned fuselage dimensions, too. Thus, following negotiations between de Havilland and Saab, the Ghost engine was selected to power the type instead and built in license as the RM 2.
By February 1946 the main outline of the proposed aircraft had been clearly defined. In Autumn 1946, following the resolution of all major questions of principal and the completion of the project specification, the Swedish Air Force formally ordered the completion of the design and that three prototype aircraft be produced, giving the proposed type the designation J 29.
On 1 September 1948, the first of the Saab 29 prototypes conducted its maiden flight, which lasted for half an hour. Because of the shape of its fuselage, the Saab J 29 quickly received the nickname "Flygande Tunnan" ("The Flying Barrel"), or "Tunnan" ("The Barrel") for short. While the demeaning nickname was not appreciated by Saab, its short form was eventually officially adopted.
A total of four prototypes were built for the aircraft's test program. The first two lacked armament, carrying heavy test equipment instead, while the third prototype was armed with four 20mm automatic guns. Various different aerodynamic arrangements were tested, such as air brakes being installed either upon the fuselage or on the wings aft of the rear spar, along with both combined and conventional aileron/flap arrangements.
The flight test program revealed that the J 29 prototypes were capable of reaching and exceeding the maximum permissible Mach number for which they had been designed, and the flight performance figures gathered were found to be typically in excess of the predicted values.
In 1948 production of the type commenced and in May 1951 the first deliveries of operational production aircraft were received by F 13 Norrköping. The J 29 proved to be very successful and several variants and updates of the Tunnan were produced, including a dedicated reconnaissance variant and a dedicated all-weather fighter with an on-board radar, the J 29D.
The J 29D variant originally started its career as a single prototype to test the Ghost RM 2A afterburner turbojet with 27.5 kN (2,800 kgp/6,175 lbf). The new engine dramatically improved the Tunnan’s performance, esp. concerning the start phase, acceleration and climb, and was eventually adopted for the whole J 29 fighter fleet in an update program, leading to the J 29F variant.
However, at the time of the RM 2A trials, Sweden was more and more in need for a suitable all-weather aerial defense for its vast, neutral airspace in the vicinity of the Soviet Union. Only a single flight of the Swedish Air Force, F1 in Hässlö, operated roundabout thirty radar-equipped fighters, and these were outdated De Havilland Mosquito night fighters (locally designated J 30).
The highly successful J 29 was soon considered as a potential air-intercept radar carrier, offering a much more up-tp-date performance and deterrent potential against would-be intruders. Consequently, Saab started the development of an indigenous all-weather fighter on the basis of the Tunnan (originally coded “J 29R”). The work started with aerodynamic trials of different radome designs and placements on a Tunnan’s nose, e .g. inside of the circular air intake opening or above it. No major drawbacks were identified, and in 1955 the decision was made to convert thirty J 29B daylight fighters for the all weather/night fighter role. These machines officially inherited the designation J 29D.
The J 29D’s compact radar, called the PS-43/T, was designed by CSF (Compagnie Generale de Telegrahpi Sans Fil) in France after the Swedish specification. It had a wavelength of 3 cm with an effect of 100 kW, and it was to have a spiral scan pattern. Range was 15-20 km, only a slight improved against the Mosquitos’ bulky SCR-720B radar set, which only had a range of 12-16km. But the system’s compact size and the ability to be operated by the pilot alone meant a serious step forward. 34 sets were delivered together with blueprints in 1956, and the PS-43 radar system was later modified and adapted to the Saab 32 Lansen, too.
The structural modifications for the radar-equipped Tunnan were carried out in the course of the ensuing J 29F update program, which had started in 1954. Beyond the afterburner engine and dogtooth wing updates for the day fighters, the J 29D also received a re-designed nose section which now featured a thimble radome for the PS-43/T, integrated into the upper air intake lip, reminiscent of the F-86D’s arrangement. The air intake itself kept the original circular diameter, but the opening was slightly wider, raked forward and featured a sharper lip, for an improved airflow under the radome. Overall performance of the J 29 did not suffer, and the conversion took place swiftly thanks to a simple replacement of the nose section in front of the windscreen and the installation of a shielded tracking monitor in the cockpit.
Experiments with a heavier cannon armament (consisting of four, long-barreled 30mm guns in the lower fuselage) for the J 29 in general were conducted in parallel, too. But, despite showing no negative effect on the J 29’s handling or performance, this upgrade was not introduced to any of the J 29 variants in service and so the J 29D kept its original four 20mm cannon as main armament, too. Additional ordnance consisted of optional racks with 75 mm/3 in air-to-air rockets under the inner wings against large aerial targets like bombers. A pair of drop tanks could be carried on the outer pylons, too, and they were frequently carried in order to extend range and loiter time. Other loads, including bombs or unguided air-to-ground missiles, were possible, but never carried except for in practice.
The last converted J 29D was delivered back to the Swedish Air Force in late 1956, just in time to replace the last active J 30 Mosquitos in service, which had been gradually phased out since 1953. In parallel, the radar-equipped J 33 Venom was introduced into service, too, since the small number of J 29Ds had in the meantime turned out to be far from sufficient to effectively cover the Swedish air space against large numbers of ever faster jet bombers and reconnaissance aircraft. The J 29D fulfilled its role and duty well, though, and was just as popular as the daylight fighter versions.
Initially, all J 29D were delivered in bare metal finish, but they were soon adorned with additional markings on fin and wing tips for easier recognition and formation flights. A few all-weather fighters of F1 Flygflottil experimentally received the blue/green camouflage which had been adopted for the S 29C reconnaissance aircraft, but this was found to be ineffective at the typical altitudes the interceptors would operate. As a consequence, the scheme was quickly changed into the much lighter livery of the former J 30 and J 33 fighters, although the bare metal undersides and the formation markings under the wing tips were retained – even though this practice was confined to F 1 and not consequently carried out among all of the fighter squadron's J 29Ds. Some J 29D furthermore carried various forms of black ID bands for quick identification in war games, but unlike the day fighters, these markings were limited to the undersides only.
From 1963 onwards all frontline J 29Fs were equipped with AIM-9 Sidewinder infrared-seeking air-to-air missiles, designated Rb 24 in Swedish service. This update was also carried out among the J 29D fleet, and the new, guided missiles considerably improved the aircraft’s capabilities.
Anyway, the J 29D’s small number remained a fundamental problem that prevented bigger success or even export sales, and due to the quick technical advances, the J 29D remained only a stopgap solution. The much more capable Saab 32 Lansen had been under development and its dedicated all-weather fighter variant, the J 32B, had already entered service in 1958, replacing the mixed and outdated lot of radar-equipped fighters in Swedish service.
Nevertheless, the J 29D soldiered on, together with the rest of the J 29F and S 29C fleet, until 1970, even though not in front line duties anymore.
General characteristics:
Crew: 1
Length: 10.80 m (35 ft 4 1/2 in)
Wingspan: 11.0 m (36 ft 1 in)
Height: 3.75 m (12 ft 4 in)
Wing area: 24.15 m² (260.0 ft²)
Empty weight: 4,845 kg (10,680 lb)
Max. takeoff weight: 8,375 kg (18,465 lb)
Powerplant:
1× Svenska Flygmotor RM2B afterburner turbojet, rated at 6,070 lbf (27 kN)
Performance:
Maximum speed: 1,060 km/h (660 mph)
Range: 1,100 km (685 mi)
Service ceiling: 15,500 m (50,850 ft)
Rate of climb: 32.1 m/s (6,320 ft/min)
Armament:
4x 20mm Hispano Mark V autocannon in the lower front fuselage
Typically, a pair of 400-liter (106 US gallon) or 500-liter (132 US gallon) drop tanks was carried on the outer “wet” pylons
Further air-to-air ordnance initially consisted of 75 mm (3 in) air-to-air rockets, from 1963 onwards the J 29D could also carry up to 4x Rb 24 (AIM-9B Sidewinder) IR-guided air-to-air missiles.
Optionally (but never carried in service), the J 29D could also deploy a wide range of bombs and unguided missiles, including 145 mm (5.8 in) anti-armor rockets, 150 mm (6 in) HE (high-explosive) rockets or 180 mm (7.2 in) HE anti-ship rockets
The kit and its assembly:
Sweden is a prolific whiffing territory, and the Saab 29 offers some interesting options. The all-weather Tunnan was a real Saab project, and things actually got as far as the aforementioned radome shape test stage. But eventually the project was fully dropped, since Saab had been busy with standard J 29 production and conversions, so that this aircraft never materialized, just as the projected side-by-side trainer Sk 29 of the same era.
However, I recently came across a nice Saab 29 book which also covers some projects – including drawings of the radar-equipped Tunnan that never was. My converted model with the thimble radome and the raked air intake is based on these drawings.
The basic kit is the Heller Saab 29, which I deem superior to the Matchbox Tunnan, with its mix of raised and engraved panel lines and overall rather soft detail (despite the surprisingly nice cockpit). Anyway,, the Heller kit has its flaws, too, e. g. a generally weak material thickness, lack of locator pins or other stabilizing aids and some sinkholes here and there.
The kit was built mostly OOB, with as much lead in the gun tray as possible - and it actually stands on its own three feet/wheels! The only major change is the modified nose section. It sounds simple to graft a radome onto the Tunnan's nose, but the rhinoplasty was challenging. The whole front end had to be renewed, based on the profile drawings and sketches at hand.
The thimble radome is actually a recycled drop tank front end from a Hasegawa F6F Hellcat. The raked, lower aitr intake lip comes from a Matchbox Mystère IVA - but it lost its splitter, was reshaped and had the OOB air intake duct glued into place from behind. Once the intake was glued into its place, a wedge opeing was cut into the area in front of the canopy and the drop tank radome adapted to the gap, a step-by-step approach, since I wanted to have the radome slightly protrude into the airtake, but also keep a staright line in front of the windscreen.
Additional details include new pitots on the wing tips and some additional antennae. The heat shield for the afterburner engine is OOB, as well as the streamlined drop tanks and their pylons. I just added an additional pair of pylons (from an Acedamy MiG-23) to the inner wing, holding a pair of AIM-9Bs.
Painting and markings:
Finding a suitable, yet “different” scheme for the J 29 night fighter was not easy; most J 29 were left in bare metal, some carried dark green upper surfaces and some S 29C wore a paint scheme in olive green and dark blue. I eventually settled for the RAF style paint scheme that had been adopted with the J 30 Mosquito and J 33 Venom night fighters – not spectacular, but different from the Swedish early Sixties norm, and it subtly underlines the J 29D’s role.
The scheme was lent from RAF Venom night fighters (which was used on the Swedish J 33, too), and of the upper surfaces I used RAF tones, too: Humbrol 163 (Dark Green) and 165 (Medium Sea Grey). However, I did not want to use the grey on the lower surfaces, since I found that scheme a bit too uniform and British, so I painted the lower surfaces in NMF, with a waterline at medium height - higher than the camouflaged S 29C’s and lower than the early, camouflaged J 29A fighters (with an experimental all-green upper surface).
The bare metal finish was created with acrylic Aluminum (Revell 99) and Polished and Matt Aluminum Metallizer (Humbrol) added on top, highlighting single panels. Around the engine bay and the exhaust, a base with Iron (Revell 91) was laid down, with Steel Metallizer (Modelmaster) on top.
Under the wing tips, green formation markings (again Humbrol 163) were added, as well as black ID stripes (cut from generic decal sheet material). Other, Swedish adornment, like the roundels, codes or squadron markings, was taken from the OOB sheet, a PrintScale sheet for the J 29 and leftover decals from a Heller J 21.
Interior details were painted according to Swedish standard, thankfully there are many good pictures available. The cockpit interior became grey-green (Revell 67 comes very close to the real thing) with light grey dashboard and side consoles. The landing gear wells medium (Revell 57) grey with some dry-brushed Aluminum, while the wheel discs became grey-green, too.
An interesting result, through relatively little effort: the dog nose changes the look of the tubby J 29 a lot, it looks much sleeker and somewhat German now – but somehow also more retro than the original aircraft? The different paint scheme looks unusual, too, despite being relatively down-to-earth. This will certainly not be my last modified J 29, a two-seat trainer would certainly be another cool and reality based Tunnan whif?
I went on the Wayback Machine to see what Busch System's website back in 2001! There was a page about they're promotional items page.
+++ DISCLAIMER +++
Nothing you see here is real, even though the model, the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
In the aftermath of the Second World War, Sweden required a strong air defense, utilizing the newly developed jet propulsion technology. This led to a pair of proposals being issued by the Saab design team, led by Lars Brising. The first of these, codenamed R101, was a cigar-shaped aircraft, which bore a resemblance to the American Lockheed P-80 Shooting Star. The second design, which would later be picked as the winner, was a barrel-shaped design, codenamed R 1001, which proved to be both faster and more agile upon closer study.
The original R 1001 concept had been designed around a mostly straight wing, but after Swedish engineers had obtained German research data on swept-wing designs, the prototype was altered to incorporate a 25° sweep. In order to make the wing as thin as possible, Saab elected to locate the retractable undercarriage in the aircraft's fuselage rather than into the wings.
Extensive wind tunnel testing performed at the Swedish Royal University of Technology and by the National Aeronautical Research Institute had also influenced aspects of the aircraft's aerodynamics, such as stability and trim across the aircraft's speed range. In order to test the design of the swept wing further and avoid any surprises, it was decided to modify a single Saab Safir. It received the designation Saab 201 and a full-scale R 1001 wing for a series of flight tests. The first 'final' sketches of the aircraft, incorporating the new information, was drawn in January 1946.
The originally envisioned powerplant for the new fighter type was the de Havilland Goblin turbojet engine. However, in December 1945, information on the newer and more powerful de Havilland Ghost engine became available. The new engine was deemed to be ideal for Saab's in-development aircraft, as not only did the Ghost engine had provisions for the use of a central circular air intake, the overall diameter of the engine was favorable for the planned fuselage dimensions, too. Thus, following negotiations between de Havilland and Saab, the Ghost engine was selected to power the type instead and built in license as the RM 2.
By February 1946 the main outline of the proposed aircraft had been clearly defined. In Autumn 1946, following the resolution of all major questions of principal and the completion of the project specification, the Swedish Air Force formally ordered the completion of the design and that three prototype aircraft be produced, giving the proposed type the designation J 29.
On 1 September 1948, the first of the Saab 29 prototypes conducted its maiden flight, which lasted for half an hour. Because of the shape of its fuselage, the Saab J 29 quickly received the nickname "Flygande Tunnan" ("The Flying Barrel"), or "Tunnan" ("The Barrel") for short. While the demeaning nickname was not appreciated by Saab, its short form was eventually officially adopted.
A total of four prototypes were built for the aircraft's test program. The first two lacked armament, carrying heavy test equipment instead, while the third prototype was armed with four 20mm automatic guns. Various different aerodynamic arrangements were tested, such as air brakes being installed either upon the fuselage or on the wings aft of the rear spar, along with both combined and conventional aileron/flap arrangements.
The flight test program revealed that the J 29 prototypes were capable of reaching and exceeding the maximum permissible Mach number for which they had been designed, and the flight performance figures gathered were found to be typically in excess of the predicted values.
In 1948 production of the type commenced and in May 1951 the first deliveries of operational production aircraft were received by F 13 Norrköping. The J 29 proved to be very successful and several variants and updates of the Tunnan were produced, including a dedicated reconnaissance variant and a dedicated all-weather fighter with an on-board radar, the J 29D.
The J 29D variant originally started its career as a single prototype to test the Ghost RM 2A afterburner turbojet with 27.5 kN (2,800 kgp/6,175 lbf). The new engine dramatically improved the Tunnan’s performance, esp. concerning the start phase, acceleration and climb, and was eventually adopted for the whole J 29 fighter fleet in an update program, leading to the J 29F variant.
However, at the time of the RM 2A trials, Sweden was more and more in need for a suitable all-weather aerial defense for its vast, neutral airspace in the vicinity of the Soviet Union. Only a single flight of the Swedish Air Force, F1 in Hässlö, operated roundabout thirty radar-equipped fighters, and these were outdated De Havilland Mosquito night fighters (locally designated J 30).
The highly successful J 29 was soon considered as a potential air-intercept radar carrier, offering a much more up-tp-date performance and deterrent potential against would-be intruders. Consequently, Saab started the development of an indigenous all-weather fighter on the basis of the Tunnan (originally coded “J 29R”). The work started with aerodynamic trials of different radome designs and placements on a Tunnan’s nose, e .g. inside of the circular air intake opening or above it. No major drawbacks were identified, and in 1955 the decision was made to convert thirty J 29B daylight fighters for the all weather/night fighter role. These machines officially inherited the designation J 29D.
The J 29D’s compact radar, called the PS-43/T, was designed by CSF (Compagnie Generale de Telegrahpi Sans Fil) in France after the Swedish specification. It had a wavelength of 3 cm with an effect of 100 kW, and it was to have a spiral scan pattern. Range was 15-20 km, only a slight improved against the Mosquitos’ bulky SCR-720B radar set, which only had a range of 12-16km. But the system’s compact size and the ability to be operated by the pilot alone meant a serious step forward. 34 sets were delivered together with blueprints in 1956, and the PS-43 radar system was later modified and adapted to the Saab 32 Lansen, too.
The structural modifications for the radar-equipped Tunnan were carried out in the course of the ensuing J 29F update program, which had started in 1954. Beyond the afterburner engine and dogtooth wing updates for the day fighters, the J 29D also received a re-designed nose section which now featured a thimble radome for the PS-43/T, integrated into the upper air intake lip, reminiscent of the F-86D’s arrangement. The air intake itself kept the original circular diameter, but the opening was slightly wider, raked forward and featured a sharper lip, for an improved airflow under the radome. Overall performance of the J 29 did not suffer, and the conversion took place swiftly thanks to a simple replacement of the nose section in front of the windscreen and the installation of a shielded tracking monitor in the cockpit.
Experiments with a heavier cannon armament (consisting of four, long-barreled 30mm guns in the lower fuselage) for the J 29 in general were conducted in parallel, too. But, despite showing no negative effect on the J 29’s handling or performance, this upgrade was not introduced to any of the J 29 variants in service and so the J 29D kept its original four 20mm cannon as main armament, too. Additional ordnance consisted of optional racks with 75 mm/3 in air-to-air rockets under the inner wings against large aerial targets like bombers. A pair of drop tanks could be carried on the outer pylons, too, and they were frequently carried in order to extend range and loiter time. Other loads, including bombs or unguided air-to-ground missiles, were possible, but never carried except for in practice.
The last converted J 29D was delivered back to the Swedish Air Force in late 1956, just in time to replace the last active J 30 Mosquitos in service, which had been gradually phased out since 1953. In parallel, the radar-equipped J 33 Venom was introduced into service, too, since the small number of J 29Ds had in the meantime turned out to be far from sufficient to effectively cover the Swedish air space against large numbers of ever faster jet bombers and reconnaissance aircraft. The J 29D fulfilled its role and duty well, though, and was just as popular as the daylight fighter versions.
Initially, all J 29D were delivered in bare metal finish, but they were soon adorned with additional markings on fin and wing tips for easier recognition and formation flights. A few all-weather fighters of F1 Flygflottil experimentally received the blue/green camouflage which had been adopted for the S 29C reconnaissance aircraft, but this was found to be ineffective at the typical altitudes the interceptors would operate. As a consequence, the scheme was quickly changed into the much lighter livery of the former J 30 and J 33 fighters, although the bare metal undersides and the formation markings under the wing tips were retained – even though this practice was confined to F 1 and not consequently carried out among all of the fighter squadron's J 29Ds. Some J 29D furthermore carried various forms of black ID bands for quick identification in war games, but unlike the day fighters, these markings were limited to the undersides only.
From 1963 onwards all frontline J 29Fs were equipped with AIM-9 Sidewinder infrared-seeking air-to-air missiles, designated Rb 24 in Swedish service. This update was also carried out among the J 29D fleet, and the new, guided missiles considerably improved the aircraft’s capabilities.
Anyway, the J 29D’s small number remained a fundamental problem that prevented bigger success or even export sales, and due to the quick technical advances, the J 29D remained only a stopgap solution. The much more capable Saab 32 Lansen had been under development and its dedicated all-weather fighter variant, the J 32B, had already entered service in 1958, replacing the mixed and outdated lot of radar-equipped fighters in Swedish service.
Nevertheless, the J 29D soldiered on, together with the rest of the J 29F and S 29C fleet, until 1970, even though not in front line duties anymore.
General characteristics:
Crew: 1
Length: 10.80 m (35 ft 4 1/2 in)
Wingspan: 11.0 m (36 ft 1 in)
Height: 3.75 m (12 ft 4 in)
Wing area: 24.15 m² (260.0 ft²)
Empty weight: 4,845 kg (10,680 lb)
Max. takeoff weight: 8,375 kg (18,465 lb)
Powerplant:
1× Svenska Flygmotor RM2B afterburner turbojet, rated at 6,070 lbf (27 kN)
Performance:
Maximum speed: 1,060 km/h (660 mph)
Range: 1,100 km (685 mi)
Service ceiling: 15,500 m (50,850 ft)
Rate of climb: 32.1 m/s (6,320 ft/min)
Armament:
4x 20mm Hispano Mark V autocannon in the lower front fuselage
Typically, a pair of 400-liter (106 US gallon) or 500-liter (132 US gallon) drop tanks was carried on the outer “wet” pylons
Further air-to-air ordnance initially consisted of 75 mm (3 in) air-to-air rockets, from 1963 onwards the J 29D could also carry up to 4x Rb 24 (AIM-9B Sidewinder) IR-guided air-to-air missiles.
Optionally (but never carried in service), the J 29D could also deploy a wide range of bombs and unguided missiles, including 145 mm (5.8 in) anti-armor rockets, 150 mm (6 in) HE (high-explosive) rockets or 180 mm (7.2 in) HE anti-ship rockets
The kit and its assembly:
Sweden is a prolific whiffing territory, and the Saab 29 offers some interesting options. The all-weather Tunnan was a real Saab project, and things actually got as far as the aforementioned radome shape test stage. But eventually the project was fully dropped, since Saab had been busy with standard J 29 production and conversions, so that this aircraft never materialized, just as the projected side-by-side trainer Sk 29 of the same era.
However, I recently came across a nice Saab 29 book which also covers some projects – including drawings of the radar-equipped Tunnan that never was. My converted model with the thimble radome and the raked air intake is based on these drawings.
The basic kit is the Heller Saab 29, which I deem superior to the Matchbox Tunnan, with its mix of raised and engraved panel lines and overall rather soft detail (despite the surprisingly nice cockpit). Anyway,, the Heller kit has its flaws, too, e. g. a generally weak material thickness, lack of locator pins or other stabilizing aids and some sinkholes here and there.
The kit was built mostly OOB, with as much lead in the gun tray as possible - and it actually stands on its own three feet/wheels! The only major change is the modified nose section. It sounds simple to graft a radome onto the Tunnan's nose, but the rhinoplasty was challenging. The whole front end had to be renewed, based on the profile drawings and sketches at hand.
The thimble radome is actually a recycled drop tank front end from a Hasegawa F6F Hellcat. The raked, lower aitr intake lip comes from a Matchbox Mystère IVA - but it lost its splitter, was reshaped and had the OOB air intake duct glued into place from behind. Once the intake was glued into its place, a wedge opeing was cut into the area in front of the canopy and the drop tank radome adapted to the gap, a step-by-step approach, since I wanted to have the radome slightly protrude into the airtake, but also keep a staright line in front of the windscreen.
Additional details include new pitots on the wing tips and some additional antennae. The heat shield for the afterburner engine is OOB, as well as the streamlined drop tanks and their pylons. I just added an additional pair of pylons (from an Acedamy MiG-23) to the inner wing, holding a pair of AIM-9Bs.
Painting and markings:
Finding a suitable, yet “different” scheme for the J 29 night fighter was not easy; most J 29 were left in bare metal, some carried dark green upper surfaces and some S 29C wore a paint scheme in olive green and dark blue. I eventually settled for the RAF style paint scheme that had been adopted with the J 30 Mosquito and J 33 Venom night fighters – not spectacular, but different from the Swedish early Sixties norm, and it subtly underlines the J 29D’s role.
The scheme was lent from RAF Venom night fighters (which was used on the Swedish J 33, too), and of the upper surfaces I used RAF tones, too: Humbrol 163 (Dark Green) and 165 (Medium Sea Grey). However, I did not want to use the grey on the lower surfaces, since I found that scheme a bit too uniform and British, so I painted the lower surfaces in NMF, with a waterline at medium height - higher than the camouflaged S 29C’s and lower than the early, camouflaged J 29A fighters (with an experimental all-green upper surface).
The bare metal finish was created with acrylic Aluminum (Revell 99) and Polished and Matt Aluminum Metallizer (Humbrol) added on top, highlighting single panels. Around the engine bay and the exhaust, a base with Iron (Revell 91) was laid down, with Steel Metallizer (Modelmaster) on top.
Under the wing tips, green formation markings (again Humbrol 163) were added, as well as black ID stripes (cut from generic decal sheet material). Other, Swedish adornment, like the roundels, codes or squadron markings, was taken from the OOB sheet, a PrintScale sheet for the J 29 and leftover decals from a Heller J 21.
Interior details were painted according to Swedish standard, thankfully there are many good pictures available. The cockpit interior became grey-green (Revell 67 comes very close to the real thing) with light grey dashboard and side consoles. The landing gear wells medium (Revell 57) grey with some dry-brushed Aluminum, while the wheel discs became grey-green, too.
An interesting result, through relatively little effort: the dog nose changes the look of the tubby J 29 a lot, it looks much sleeker and somewhat German now – but somehow also more retro than the original aircraft? The different paint scheme looks unusual, too, despite being relatively down-to-earth. This will certainly not be my last modified J 29, a two-seat trainer would certainly be another cool and reality based Tunnan whif?
+++ DISCLAIMER +++
Nothing you see here is real, even though the model, the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
In the aftermath of the Second World War, Sweden required a strong air defense, utilizing the newly developed jet propulsion technology. The original concept had been designed around a mostly straight wing, but after Swedish engineers had obtained German research data on swept-wing designs, the prototype was altered to incorporate a 25° sweep. In order to make the wing as thin as possible, Saab elected to locate the retractable undercarriage in the aircraft's fuselage rather than into the wings.
Extensive wind tunnel testing had also influenced aspects of the aircraft's aerodynamics, such as stability and trim across the aircraft's speed range. In order to test the design of the swept wing further and avoid any surprises, it was decided to modify a Saab Safir. It received the designation Saab 201 and a full-scale swept wing for a series of flight tests. The first 'final' sketches of the aircraft, incorporating the new information, were drawn in January 1946.
The originally envisioned powerplant for the new fighter type was the de Havilland Goblin turbojet engine. However, in December 1945, information on the newer and more powerful de Havilland Ghost engine became available. The new engine was deemed to be ideal for Saab's in-development aircraft, as not only did the Ghost engine had provisions for the use of a central circular air intake, the overall diameter of the engine was favorable for the planned fuselage dimensions, too. Thus, following negotiations between de Havilland and Saab, the Ghost engine was selected to power the type and built in license as the RM 2.
By February 1946 the main outline of the proposed aircraft had been clearly defined. In autumn 1946, following the resolution of all major questions of principal and the completion of the project specification, the Swedish Air Force formally ordered the completion of the design and that three prototype aircraft be produced, giving the proposed type the designation J 29. After a thorough test program, production of the type commenced in 1948 and, in May 1951, the first deliveries of operational production aircraft were received by F 13 Norrköping. The J 29 proved to be very successful and several variants and updates of the Tunnan were produced, including a dedicated reconnaissance variant, a two seat trainer and an all-weather fighter with an onboard radar
However, Sweden foresaw that there would soon be a need for a jet fighter that could intercept bombers at high altitude and also successfully engage fighters. During September 1949, the Swedish Air Force, via the Swedish Defence Material Administration, released a requirement for a cutting-edge interceptor aircraft that was envisioned to be capable of attacking hostile bomber aircraft in the transonic speed range. As released, this requirement specified a top speed of Mach speed 1.4 to 1.5. (1956, the specified speed was revised and raised to Mach 1.7-1.8, and eventually led to the Saab 35 Draken). With the barely supersonic Saab 32 Lansen just under development, and intended for different roles than being a nimble day fighter, the company searched for a way to either achieve supersonic flight through modifications of an existing type or at least gather sufficient data and develop and try the new technologies necessary to meet the 1949 requirements.
Since Sweden did not have a truly supersonic aircraft in its inventory (not even an experimental type), Saab decided to convert the Saab 29 into a supersonic testbed, with the outlook to develop an interim day fighter that could replace the various Tunnan fighter versions and support the new Lansen fleet until a fully capable Mach 1.5+ interceptor was ready for service. Even though the type was regarded as a pure experimental aircraft, the designation remained close to the J29 nomenclature in order to secure military funding for the project and to confuse eventual spies. Consequently, the P29 was initially presented as a new J29 version (hence the “G” suffix).
The P29G was based on a heavily modified production J29B airframe, which was built in two versions and only in two specimens. Work on the first airframe started in 1952, just when the first Saab 32 prototype made its maiden flight. The initial challenge consisted of integrating two relatively compact axial flow jet engines with afterburners into the fuselage, since the J29’s original RM2, even in its late afterburner variant, was not able to safely deliver the necessary thrust for the intended supersonic flight program. After long negotiations, Saab was able to procure a small number of Westinghouse J34-WE-42 turbojets from the USA, which delivered as a pair 40% more thrust than the original RM2B. The engines were only delivered under the restriction that they would exclusively be used in connection with the supersonic research program.
Through a thorough re-construction, the Saab team was able to mount the new engines into the lower rear fuselage, and, internally, the air intake duct had to be modified and forked behind the landing gear wells. Due to the significantly widened rear fuselage, the P29G became quickly nicknamed “Kurviga Tunnan” (= “Curvy Barrel”). Even though the widened rear fuselage increased the aircraft’s frontal cross section, the modified shape had the (unintended) effect of area ruling, a welcome side benefit which became apparent during the flight test and which largely promoted the P29G’s gain of top speed.
Another special and unique feature of the P29G was a special wing attachment system. It consisted of two strengthened, open box spars in the fuselage with additional attachment points along the wing roots, which allowed different wings to be switched with relatively little effort. However, due to this modification, the wing tanks (with a total capacity of 900l inside of the J29s standard wings) were lost and only 2.150l in the Saab 29’s standard fuselage tanks could be carried – but this was, for a research aircraft, not regarded as a major weakness, and compensated for the wing attachment system’s additional weight. The original wing-mounted pitots were replaced by a single, massive sensor boom attached to the aircraft’s nose above the air intake, slightly set-off to starboard in order to give the pilot an unobstructed view.
The first P29G's maiden flight, marked “Gul Urban” (Yellow U), took place in July 1955. The aircraft behaved normally, even though the center of gravity had markedly shifted backwards and the overall gain of weight made the aircraft slightly unstable along the longitudinal axis. During the initial, careful attempts to break the sound barrier, it soon became apparent that both the original wings as well as the original air intake shape limited the P29G's potential. In its original form, the P29G could only barely pass Mach 1 in level flight.
As a consequence, the second P29G, which had been under conversion from another J29B airframe since mid-1954, received more thorough modifications. The air intake was lengthened and widened, and in order to make it more effective at supersonic speed it received a sharp lip. Wind tunnel tests with the first machine led to a modified tail, too: the fin was now taller and further swept back, the stabilizer was moved to a higher position, resulting in a cruciform layout. The original single-piece stabilizer was furthermore replaced by a two-piece, all-moving construction with a 45° sweep and a thinner profile. This not only improved the aerodynamics at high speed, it also suppressed the longitudinal instability problem, even though this was never really cured.
Due to the even higher all-up weight of the new aircraft, the landing gear was reinforced and the 2nd P29G received an experimental suspension system on its main legs with higher spring travel, which was designed for operations on semi-prepared airfields. This system had actually been designed for the updated J29 fighters (esp. the A32B attack variant), but it was not introduced into series production or the Saab 29E/F conversion program. Despite these massive changes, the P29G designation was retained, and the second machine, carrying the tactical code “Röd Urban” (Red U), was quickly nicknamed “Karpen” (“Carp”), due to its characteristic new intake shape, the long fin and its stocky shape.
The second P29G was ready for flight tests in August 1956, just in time to support the Saab 35’s ongoing development – the aircraft, which was eventually built to meet (and exceed) the Swedish Air Force’s 1949 supersonic interceptor requirement. The modifications proved to be successful and the P29G was, fitted with a 60° sweep wing and in clean configuration, able to achieve a maximum speed of 1.367 km/h (849 mph) in level flight, a formidable achievement (vs. the 1,060 km/h (660 mph) of the late J29F and the 1200 km/h (745 mph) of the J32B interceptor) for the post WWII design.
Several wing shapes and profiles were tested, including sweep angles from 25° to 63° as well as different shapes and profiles. Even though the machines carried provisions for the J29’s standard armament, the 20 mm cannons were normally not mounted and replaced with sensors and recording equipment. However, both machines were temporarily fitted with one or two guns in order to analyze the effects of firing the weapons at supersonic speed. Underwing ordnance was also almost never carried. In some tests, though, light bombs or unguided missiles were carried and deployed, or podded cine cameras were carried.
While the second P29G was used for high speed trials, the first machine remained in its original guise and took over low speed handling tests. Thanks to the unique wing switch mechanism, the supersonic research program could be held within a very tight schedule and lasted until late 1959. Thereafter, the P29Gs’ potential was of little use anymore, and the engine use agreement with the USA put an end to further use of the two aircraft, so that both P29Gs were retired from service in 1960. The 1st machine, outfitted with standard J29F wings and stripped off of its engines, remained in use as an instructional air at Malmslätt air base 1969, while the second machine was mothballed. However, both airframes were eventually scrapped in 1970.
General characteristics:
Crew: 1
Length: 11.66 m (38 ft 2 in) fuselage only,
13,97 m (45 ft 9 in) with pitot boom
Wingspan: varied*; 11.0 m (36 ft 1 in) with standard 25° sweep wings,
10.00 m (32 ft 9 ¾ in) with experimental 45° wings
Height: 4.54m (14 ft 10 ½ in)
Wing area: varied*; 24.15 m² (260.0 ft²) with standard 25° sweep wings
22.5 m² (242.2 ft²) with experimental 45° wings
Empty weight: 5,220 kg (11,500 lb)
Max. takeoff weight: 8,510 kg (18,744 lb)
Powerplant:
2× Westinghouse J34-WE-42 turbojets, each rated at 3,400 lbf (15 kN) dry thrust
and 4,200 lbf (19 kN) with full afterburner
Performance:
Maximum speed: 1.367 km/h (849 mph) were achieved*
Range: 790 km (490 mi)
Service ceiling: up to 17,250 m (56,500 ft)*
Rate of climb: up to 45 m/s (8,850 ft/min)*
*Varying figures due to different tested wing configurations
Armament:
None installed; provisions for 4x 20mm Hispano Mark V autocannon in the lower front fuselage.
Depending on the mounted wing type, various external loads could be carried, including a wide range of light bombs, 75 mm (3 in) air-to-air rockets, 145 mm (5.8 in) anti-armor rockets, 150 mm (6 in) HE (high-explosive) rockets or 180 mm (7.2 in) HE anti-ship rockets. Due to the lack of complex wiring or fuel plumbing, no guided weapons or drop tanks could be mounted, though.
The kit and its assembly:
Sweden is a prolific whiffing territory, and the Saab 29 offers some interesting options. This highly modified Tunnan, which is actually rather a kitbashing than a mere model kit modification, is/was a submission to the “More or less engines” group build at whatifmodelers.com in summer 2019.
I actually had the idea of a two-engine J29 in the back of my mind for a long time, spawned by a resin conversion set for the Hasegawa B-47 Stratojet kit that came with new intakes and exhaust sections for the four engine pods. The single engine pod parts had been spent a long time ago, but the twin engine parts were still waiting for a good use. Could the exhaust fit under/into a Tunnan…?
I even had a Matchbox J29 stashed away for this experiment long ago, as well as some donor parts like the wings, and the GB eventually offered the right motivation to put those things together that no one would expect to work.
So I pulled out all the stuff and started – a rather straightforward affair. Work started with the fuselage, which was, together with the (very nice) cockpit assembled OOB at first, the nose filled with as much lead as possible and with the lower rear section cut away, so the B-47 resin jet nozzles would end up at the same position as the original RM2B exhaust. Due to the pen nib fairing between them, though, the profile of the modified tail became (visually) more massive, and I had to fill some gaps under the tail boom (with styrene sheet and putty). The twin engines also turned out to be wider than expected – I had hoped for straight flanks, but the fuselage shape ended up with considerable bulges behind the landing gear wells. These were created with parts from drop tank halves and blended into the rest of the lower hill with PSR work. In the same wake the area under the fin was sculpted and re-created, too.
At that point it became clear that I had to do more on the fuselage, esp. the front end, in order to keep the aircraft visually balance. A convenient solution became an F-100 air intake, which I grafted onto the nose instead of the original circular and round-lipped orifice – with its sharp lip the Super Sabre piece was even a plausible change! The fuselage shapes and diameters differed considerably, though, more PSR became necessary.
Next came the wings: I had already set apart a pair of trapezoid wings with a 45° sweep angle – these were left over from a PM Model Ta 183 conversion some time ago. With their odd shape and size they were a perfect match for my project, even more so due to the fact that I could keep the original J29 wing attachment points, I just had to shorten and modify the trailing edge area on the fuselage. The result was very conclusive.
With the new nose and the wings in place, the overall proportions became clearer: still tail-heavy, but not unpleasant. At this time I was also certain that I had to modify the tail surfaces. The fin was too small and did not have enough sweep for the overall look, and the stabilizer, with its thick profile, rounded edges and the single, continuous rudder did not look supersonic at all. What followed was a long search in the donor banks for suitable replacements, and I eventually came up with a MiG-15 fin (Hobby Boss) which was later clipped at the top for a less recognizable profile. The stabilizers were more challenging, though. My solution eventually became a pair of modified stabilizers from a Matchbox Buccaneer(!), attached to the MiG-15 fin.
The design problems did not stop here, though: the landing gear caused some more headaches. I wanted to keep the OOB parts, but especially the main legs would leave the aircraft with a very goofy look through a short wheelbase and a rear axis position too much forward. In an attempt to save the situation I attached swing arms to the OOB struts, moving the axis maybe 5mm backwards and widening the track by 2mm at the same time. Not much in total, but it helped (a little, even though the aircraft is still very tail-heavy)
As a final addition – since the original, wing-mounted pitots of the J29 were gone now and would not go well with the wing-switching idea – I gave the P29G a large, nose-mounted pitot and sensor boom, placed on top of the nose. This part come, like the air intake, from an F-100.
Painting and markings:
I tend to be conservative when it comes to liveries for what-if models, and the P29G is no exception. At first, I thought that this build could become an operational supersonic daylight interceptor (the J29G), so that I could give the model full military markings and maybe a camouflage paint scheme. However, this idea would not work: the potential real life window for such an aircraft, based on the Saab 29, would be very narrow. And aircraft development in the late Fifties made quantum leaps within a very short period of time: While the J29A entered service, work on the Mach 2 Saab 35 was already underway – nobody would have accepted (or needed) a Mach 1 fighter, based on late Forties technology, at that time anymore, and there was the all-weather Saab J32B around, too. The update program with new wings and a more powerful afterburner engine was all that could be done to exploit the Tunnan’s potential, resulting in the (real world’s) J29E and F variants.
I eventually decided that the J29G would only be a prototype/research aircraft, consequently called P29G, and through this decision I became more or less settled upon a NMF finish with some colorful markings. Consequently, the model was painted with various shades of metal colors, primarily Polished Aluminum Metallizer from Humbrol, but also with Humbrol 191 and Matt Aluminum Metallizer as well as ModelMaster Steel Metallizer. Around the exhaust section, I also used Revell 91 (Iron) and ModelMaster Exhaust Metallizer. Some single panels and details were painted with Revell 99 (Aluminum), and I also used generic decal material in silver to simulate some smaller access panels. Grey decal sheet was used to simulate covers for the cannon nozzles.
The cockpit interior was painted, according to Saab 29 standard, in a dark greenish-grey (Revell 67), and bluish grey was used inside of the landing gear wells (Revell 57). The pitot boom received black and white stripes.
For markings I let myself get inspired from the real world Saab 29 and 32 prototypes, which were all marked with a colored “U” tactical code on the fin and also on the front fuselage, simply meaning “Utverding” (= “Test”). I found four red decals, and I also gave the aircraft a yellow cheatline, lent from an Airfix F-86D decal sheet. The Swedish roundels come from a generic aftermarket sheet, most stencils were taken from the Revell OOB sheet and a Printscale J29 sheet.
Before the model was sealed with semi-gloss acrylic varnish from Italeri, some grinded graphite was rubbed onto the rear fuselage, adding a metallic shine and simulating exhaust stains.
A thorough conversion – this has rather evolved into a kitbashing than just a kit conversion: not much from the original Matchbox J29 has been left over. But I like the outcome, even though things developed gradually from the simple idea of changing the number of engines on the Tunnan. One thing led to another. The resulting aircraft looks quite plausible, even though I am not totally happy with the landing gear, which appears to be rather far forward, despite surgical measures to mend the situation. The Ta 183 wings are a very good match, though, and I cannot help but recognize a certain French look, maybe due to the cruciform tail and the oval air intake? The P29G could also, with Argentinian marking, have become a revised version of the FMA Pulqui II?
More picture coming soon.
Using original Lego set, modify it with system's bricks. Adding claws and tail to increase the "scary" feeling.
This is harder than I thought it would be.
Here's a new project we are working on. It is based on a simulation of solidification in supercooled liquids. As the liquid turns to solid, it forms a dendritic structure (this is how snowflakes form). We've taken this physical system and modified it to create a non-physical one where both the solid and liquid phase to grow into each other, giving a more symmetric boundary condition where the phases interlock.
The video shows a few of the 10,000 images we generated to explore the system's parameter space. Warning: This video is extremely repetitive. If you are impatient, skip around to see more pattern diversity.
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
The APS-4 was a light-weight, pod-mounted airborne search Radar which was suitable for either Airborne Interception (AI) or Air-to-Surface-Vessel (ASV) applications. It was a member of a series of early air-borne radar equipment and was initially designated as AS-H (“Air-to Surface, version H”). This very advanced equipment for its time was first used by the US Navy on board of carrier-borne night fighter aircraft like respective F6F Hellcat and F4U-2 Corsair variants. The Royal Air Force was impressed enough with the system's performance that it was adopted in 1943 for domestic airframes, too, as an alternative to the British AI radars used on board of early Mosquito, Beaufighter and Defiant night fighters.
One very successful carrier of the APS-4, in RAF service known as the AI Mk XV, was the De Havilland Mosquito in its NF Mk.XIX and NF Mk.30 night fighter incarnations. Aware of the performance and effectiveness of the American single engine aircraft, though, the RAF decided to test similar domestic airframes towards the end of WWII as well. The shorter range of a single engine night fighter would, compared with the bigger but also more sluggish two engine types, be compensated by higher speed, agility and rate of climb. These lighter aircraft were intended as a second defense for homeland defense, esp. around large cities or industrial sites.
One of these projects concerned the Supermarine Spitfire, more specifically the new types powered by a Rolly Royce Griffon engine. The Griffon provided a substantial performance increase over the Merlin-powered Spitfire Mk IX, but initially suffered from poor high altitude performance due to having only a single stage supercharged engine. By 1943, Rolls-Royce engineers had developed a new Griffon engine, the 61 series, with a two-stage supercharger, leading to a slightly modified engine, the 65 series, which was eventually mounted in the Spitfire Mk XIV.
With this performance surplus, a night fighter, despite carrying the AI Mk XV equipment plus a second crew member, was still expected to offer a superior performance over German two-engine bombers that intruded British airspace and the heavy night fighters that lurked over the Channel and attacked grouping RAF night bomber formations before they entered Continental airspace.
From this idea, the Spitfire NF.XX was born, as an alternative to a Hawker Typhoon night fighter with a British radar and only a single crew member. In summer 1944 an initial prototype was built, converted from an early series production Mk. XIV airframe. Since the AI Mk XV came with a rather complicated and voluminous display, a second crew member was deemed necessary for effective operations, esp. at night and under poor visibility conditions. The radio operator would check the radar readings and verbally guide the pilot towards the target, who could concentrate on the flying job and keep the eyes on the surroundings.
In order to fit the equipment and the second crew member into the tight Spitfire airframe, and a separate compartment behind the pilot's cockpit and the real bulkhead was added. This second seat received a separate sliding canopy, resulting in a distinctive camel hump silhouette, which earned the Spitfire NF.XX quickly the nickname 'Camelback'. Supermarine had proposed a new service name for this aircraft, 'Nightfire', but it was not officially accepted, since the machine did not differ enough from the basic Spitfire day fighter to justify a completely new designation.
The AI Mk XV equipment and its antenna were carried in a bullet-shaped pod under the port wing, similar to the US Navy night fighters’ arrangement. The radar dish was designed to scan from side to side for AI applications, but it could also be commanded to look up and down by a few degrees. This enabled the aircraft to attack targets from above, and it could also search for surface vessels below, so that the aircraft could also act in ASV or pathfinder duties in a secondary role (much like the Mosquito night fighters, which frequently guided bomber formations to their targets).
In order to mount the pod to the outer wing and compensate for the gain of weight, the standard 0.303" Browning machine guns normally located there were deleted. Instead, the NF.XX was initially armed with two 20 mm Hispano cannon plus a pair of 0.5" machine guns, mounted in a fashion similar to the Spitfire's standard E wing.
The NF.XX was powered, like the Spitfire Mk. XIV, by the two-stage supercharged Griffon 65, producing 2,050 hp (1,528 kW). A five bladed Rotol propeller of 10 ft 5 in (3.18 m) in diameter was used, and for the night fighter role the standard single exhaust stubs gave way to a collector fairing on each side, which dampened flames and improved the crew's view in the darkness.
To help balance the heavy Griffon engine, the radio equipment was moved further back in the rear fuselage. Improved VHF radio equipment allowed for the aerial mast to be removed and replaced by a "whip" aerial further aft on the fuselage spine. Because of the longer nose and the increased slipstream of the big five-bladed propeller, a new tail unit, with a taller, broader fin and a rudder of increased area was introduced.
One problem that hampered all early Griffon-powered Spitfire variants also plagued the NF.XX, though: short legs. The NF.XX carried a total of 109.5 gal of fuel, consisting of 84 gal in two main tanks and a 12.5 imp gal fuel tank in each leading edge wing tank. With this internal capacity, the fighter's maximum range was just a little over 460 miles (740 km) since the new Griffon engine consumed much more fuel per hour than the Merlin engine of earlier variants, and the extra drag and weight through the radar equipment did not make things better.
As a simple remedy, a conformal, fixed belly tank between the radiators was devised. This carried an extra 90 gal, of fuel, extending the fighter's range to about 850 miles (1,370 km) – still not much for aerial patrol and extended loiter time for interceptions, but enough for short-notice home defense duties. Alternatively, a more conventional but jettisonable 100 gal. drop tank could be carried, but it produced considerably more drag and affected overall performance so dramatically that it was never used in service.
The first tests of the new aircraft were conducted in January 1945 and three pre-production machines (all converted Mk. XIV airframes) were allocated to night fighter units for field trials and direct comparison with two engine types. Despite its innate aerodynamic and weight penalties the Spitfire NF.XX still attained an impressive top speed of 400 mph (350 kn; 640 km/h) at 29,500 ft (9.000 m), even though in clean condition only. But it was still more than enough to take on much heavier German bombers and night fighters. The second crewman was another winning factor, since the pilot alone would be overloaded in the face of heavily armed enemy aircraft in the European theatre of operations and the local weather conditions.
Further initial experience with the type resulted in several ad hoc modifications: the wing span was increased in order to improve handling and climb performance, using standard wing tip extensions from Spitfire high altitude variants. Furthermore, a deeper rudder was added to the fin because the second cockpit created significant directional instability.
Armament was changed, too - more firepower and a longer range was deemed necessary to attack the German heavy night fighters, which themselves frequently carried defensive armament in the form of heavy machine guns. Consequently, the initial pair of 0.5" machine guns was deleted and replaced by an additional pair of 20 mm Hispano cannon, and all four guns received extended barrels for a higher weapon range.
In this form, the Spitfire NF.XX quickly entered RAF service in March 1945, but, in the meantime, the German night fighter threat had declined, so that only 50 machines were completed and delivered to RAF units in the UK until the end of hostilities.
The operational use of the machines was hampered by localized skin wrinkling on the wings and fuselage at load attachment points, a problem the type shared with the Mk. XIV day fighter. Even though Supermarine advised that the machines had not been seriously weakened, nor were they on the point of failure, the RAF nevertheless issued instructions in early 1945 that all F and FR Mk XIVs were to be retrospectively fitted with clipped wings to counter the threat. The NF.XX kept their elongated wing tips, however, and were simply limited to a top speed of 370 mph (600 km/h) and not allowed to dive anymore.
General characteristics:
Crew: 2 (pilot, radar operator)
Length: 32 ft 8 in (9.96 m)
Wingspan: 40 ft 2 in (12.2 m)
Height: 10 ft 0 in (3.05 m)
Wing area: 249.7 sq.ft (23.2 m²)
Airfoil: NACA 2213 (root), NACA 2209.4 (tip)
Empty weight: 8,680 lb (3,937 kg)
Gross weight: 10,700 lb (4,853 kg)
Max takeoff weight: 12,530 lb (5,683 kg)
Powerplant:
1× Rolls-Royce Griffon 65 supercharged V12, 2,050 hp (1,530 kW) at 8,000 ft (2,438 m),
driving a 5-bladed Jablo-Rotol propeller
Performance:
Maximum speed: 400 mph (640 km/h; 353 kn) in FS supercharger gear at 29,500 ft.
Combat range: 460 mi (741 km/400 nmi) with internal fuel only
850 mi (1,370 km/757 nmi)
Ferry range: 1,093 mi (1,759 km/950 nmi)
Service ceiling: 43,500 ft (13,259 m)
Rate of climb: 4,300 ft/min (21.8 m/s) in MS supercharger gear at 2,100 ft.
3,100 ft/min (15.8 m/s) in FS supercharger gear at 22,100 ft.
Time to altitude: 8 mins to 22,000 ft (at max weight)
Wing loading: 32.72 lb/sq ft (159.8 kg/m²)
Power/mass: 0.24
Armament:
4× 20 mm (0.787-in) Hispano Mk II cannon with 120 RPG in the wings
Provision for an auxiliary underfuselage tank, either a fixed conformal 90 gal tank or a
100 gal drop tank.
The kit and its assembly:
Well, Spitfire fans might call it crude to create a whiffy variant that incorporates so many ugly details. But this fever creation came into being through the simple thought: "What would a dedicated Spitfire night fighter with a radar look like?" From this initial creative spark I tried to build this fictional NF.XX variant with available late WWII technology from a Griffon-powered Spitfire.
The basis is the Airfix Spitfire PR.XIX kit, a nice and clean offering, even though the use of this photo recce variant meant some additional work. The radar pod comes wholesale from an F4U night fighter (Fujimi), since the wing installation appeared to me to be the only plausible (and proven) option.
The second cockpit and the "double bubble" canopy come from an RS Models Spitfire Mk.IX UTI trainer, which is/was a domestic conversion made in the Soviet Union. The kit comes with an extra two seater fuselage, so that, despite body donors, almost a complete Spitfire remains (just the cockpit missing, but this can be taken from the Airfix kit).
I also considered the Spitfire TR.IX arrangement, with a stepped bubble canopy, but found that the risen rear cockpit for the instructor would not make sense in a night fighter, so the UTI arrangement with separate canopies on the same level appeared to me to be the most suitable solution for this aircraft and its task.
Surgery was not easy, though: The whole cockpit area was dissected from the RS Models trainer and – together with the internal parts like the bulkheads, dashboards and seats – transplanted into an appropriate gap, cut into the Airfix kit fuselage. The windscreen position on both airframes was used as orientation benchmark.
Basically a simple idea, but, even though you have two Spitfire kits at hand, both models differ slightly from each other in many ways. Material thickness is different, as well as panel lines, which are all there on both models but simply do not fall in line. Internal width and available space is also different, esp. the rear bulkhead was not easy to integrate into the Airfix fuselage. It worked, somehow, but it consequently took some PSR effort and rescribing (at least, both donor kits have engraved details) in order to create this Griffon-powered two-seater.
The extended wings were created through the simple implantation of high altitude wing tips from an AZ Model Spitfire I/II/V/VI kit. They match very well with the Airfix PR.XIX wings, which were simply clipped at the correct position outside of the ailerons. Since the recce Spitfire comes without any weapons I added four brass barrels (Pavla) to the wings, plus respective bulges for the magazines (scratched from sprue) and casing ejector fairings under the wings.
I also changed the vertical rudder. Instead of the separate OOB part from the Spitfire PR.XIX I used a deeper and higher rudder from a late Seafire mark (left over from a Special Hobby kit, IIRC). The part lost its hook and the notch for its deployment mechanism, replaced by a piece of styrene that was PSRed into the rest of the rudder. It’s not an obvious change, but the bigger fin area is a good counterpart to the enlarged wings and the bulkier rear fuselage.
The conformal belly tank was scratched from the upper half of a Matchbox A-10 inner wing. There are aftermarket solutions available, but I simply did not want to spend as much money on a single resin part that no one will clearly see and that’s just as expensive as the whole Airfix basis kit. Some things are just ridiculous.
Painting and markings:
Very simple: classic late war RAF night fighter colors, with Medium Sea Grey and Dark Green (Humbrol 165 and 163, respectively) on the uppers surfaces, plus Night (I used Revell Acrylics 06, Tar Black, which is actually a very dark grey tone) underneath, with a high waterline and a black fin. Looks weird on a Spitfire, but also somewhat cool!? The model received a light black ink wash and some panel post-shading, using a blue-ish hue for the Night undersurfaces.
The interior is classic RAF Cockpit Green (Humbrol 78), the only catchy marking is the red propeller spinner – originally I just wanted to keep the spinner black, too, but found that to be too dull overall.
The markings come from different sources; the codes were created with single Dull Red letters from Xtradecal, roundels and other markings come from various other sheets. The added “G” to the serial number is, BTW, an indication that the aircraft had to be guarded all the time. A nice and appropriate detail for this high tech aircraft of its time. The roundels/fin flashes were taken from another Xtradecal sheet, IIRC they belong to an FAA SB2C Helldiver.
Finally, some wear marks were added with dry-brushed light grey and silver. Exhaust stains were added with dry-brushed dark and light grey, as well as some grinded graphite. A coat of matt acrylic varnish (Italeri) sealed the kit.
I feel a bit guilty of creating the probably ugliest Spitfire possible, with all the add-ons and the weird proportions through the second cockpit and the belly tank. Very massive, at least for this sleek aircraft. The night fighter paint scheme suits the Spitfire surprisingly well, though. Anyway, it’s whifworld, after all, and I tried to go through with the night fighter idea as good and consequential as possible – the fictional NF.XX is just my personal interpretation of the theme.
The Hubble Space Telescope produced this global map of Jupiter — the first in a series of annual portraits of the solar system's outer planets from the Outer Planet Atmospheres Legacy (OPAL) program, meant to help understand the atmospheres of planets in our solar system and planets around other stars.
The Hubble observations confirm that the Great Red Spot continues to shrink and become more circular. In addition, an unusual wispy filament is seen, spanning almost the entire width of the vortex.
For more information, visit: hubblesite.org/news_release/news/2015-37
Credit: NASA, ESA, A. Simon (GSFC), M. Wong (UC Berkeley), and G. Orton (JPL-Caltech)
+++ DISCLAIMER +++
Nothing you see here is real, even though the model, the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
In the aftermath of the Second World War, Sweden required a strong air defense, utilizing the newly developed jet propulsion technology. The original concept had been designed around a mostly straight wing, but after Swedish engineers had obtained German research data on swept-wing designs, the prototype was altered to incorporate a 25° sweep. In order to make the wing as thin as possible, Saab elected to locate the retractable undercarriage in the aircraft's fuselage rather than into the wings.
Extensive wind tunnel testing had also influenced aspects of the aircraft's aerodynamics, such as stability and trim across the aircraft's speed range. In order to test the design of the swept wing further and avoid any surprises, it was decided to modify a Saab Safir. It received the designation Saab 201 and a full-scale swept wing for a series of flight tests. The first 'final' sketches of the aircraft, incorporating the new information, were drawn in January 1946.
The originally envisioned powerplant for the new fighter type was the de Havilland Goblin turbojet engine. However, in December 1945, information on the newer and more powerful de Havilland Ghost engine became available. The new engine was deemed to be ideal for Saab's in-development aircraft, as not only did the Ghost engine had provisions for the use of a central circular air intake, the overall diameter of the engine was favorable for the planned fuselage dimensions, too. Thus, following negotiations between de Havilland and Saab, the Ghost engine was selected to power the type and built in license as the RM 2.
By February 1946 the main outline of the proposed aircraft had been clearly defined. In autumn 1946, following the resolution of all major questions of principal and the completion of the project specification, the Swedish Air Force formally ordered the completion of the design and that three prototype aircraft be produced, giving the proposed type the designation J 29. After a thorough test program, production of the type commenced in 1948 and, in May 1951, the first deliveries of operational production aircraft were received by F 13 Norrköping. The J 29 proved to be very successful and several variants and updates of the Tunnan were produced, including a dedicated reconnaissance variant, a two seat trainer and an all-weather fighter with an onboard radar
However, Sweden foresaw that there would soon be a need for a jet fighter that could intercept bombers at high altitude and also successfully engage fighters. During September 1949, the Swedish Air Force, via the Swedish Defence Material Administration, released a requirement for a cutting-edge interceptor aircraft that was envisioned to be capable of attacking hostile bomber aircraft in the transonic speed range. As released, this requirement specified a top speed of Mach speed 1.4 to 1.5. (1956, the specified speed was revised and raised to Mach 1.7-1.8, and eventually led to the Saab 35 Draken). With the barely supersonic Saab 32 Lansen just under development, and intended for different roles than being a nimble day fighter, the company searched for a way to either achieve supersonic flight through modifications of an existing type or at least gather sufficient data and develop and try the new technologies necessary to meet the 1949 requirements.
Since Sweden did not have a truly supersonic aircraft in its inventory (not even an experimental type), Saab decided to convert the Saab 29 into a supersonic testbed, with the outlook to develop an interim day fighter that could replace the various Tunnan fighter versions and support the new Lansen fleet until a fully capable Mach 1.5+ interceptor was ready for service. Even though the type was regarded as a pure experimental aircraft, the designation remained close to the J29 nomenclature in order to secure military funding for the project and to confuse eventual spies. Consequently, the P29 was initially presented as a new J29 version (hence the “G” suffix).
The P29G was based on a heavily modified production J29B airframe, which was built in two versions and only in two specimens. Work on the first airframe started in 1952, just when the first Saab 32 prototype made its maiden flight. The initial challenge consisted of integrating two relatively compact axial flow jet engines with afterburners into the fuselage, since the J29’s original RM2, even in its late afterburner variant, was not able to safely deliver the necessary thrust for the intended supersonic flight program. After long negotiations, Saab was able to procure a small number of Westinghouse J34-WE-42 turbojets from the USA, which delivered as a pair 40% more thrust than the original RM2B. The engines were only delivered under the restriction that they would exclusively be used in connection with the supersonic research program.
Through a thorough re-construction, the Saab team was able to mount the new engines into the lower rear fuselage, and, internally, the air intake duct had to be modified and forked behind the landing gear wells. Due to the significantly widened rear fuselage, the P29G became quickly nicknamed “Kurviga Tunnan” (= “Curvy Barrel”). Even though the widened rear fuselage increased the aircraft’s frontal cross section, the modified shape had the (unintended) effect of area ruling, a welcome side benefit which became apparent during the flight test and which largely promoted the P29G’s gain of top speed.
Another special and unique feature of the P29G was a special wing attachment system. It consisted of two strengthened, open box spars in the fuselage with additional attachment points along the wing roots, which allowed different wings to be switched with relatively little effort. However, due to this modification, the wing tanks (with a total capacity of 900l inside of the J29s standard wings) were lost and only 2.150l in the Saab 29’s standard fuselage tanks could be carried – but this was, for a research aircraft, not regarded as a major weakness, and compensated for the wing attachment system’s additional weight. The original wing-mounted pitots were replaced by a single, massive sensor boom attached to the aircraft’s nose above the air intake, slightly set-off to starboard in order to give the pilot an unobstructed view.
The first P29G's maiden flight, marked “Gul Urban” (Yellow U), took place in July 1955. The aircraft behaved normally, even though the center of gravity had markedly shifted backwards and the overall gain of weight made the aircraft slightly unstable along the longitudinal axis. During the initial, careful attempts to break the sound barrier, it soon became apparent that both the original wings as well as the original air intake shape limited the P29G's potential. In its original form, the P29G could only barely pass Mach 1 in level flight.
As a consequence, the second P29G, which had been under conversion from another J29B airframe since mid-1954, received more thorough modifications. The air intake was lengthened and widened, and in order to make it more effective at supersonic speed it received a sharp lip. Wind tunnel tests with the first machine led to a modified tail, too: the fin was now taller and further swept back, the stabilizer was moved to a higher position, resulting in a cruciform layout. The original single-piece stabilizer was furthermore replaced by a two-piece, all-moving construction with a 45° sweep and a thinner profile. This not only improved the aerodynamics at high speed, it also suppressed the longitudinal instability problem, even though this was never really cured.
Due to the even higher all-up weight of the new aircraft, the landing gear was reinforced and the 2nd P29G received an experimental suspension system on its main legs with higher spring travel, which was designed for operations on semi-prepared airfields. This system had actually been designed for the updated J29 fighters (esp. the A32B attack variant), but it was not introduced into series production or the Saab 29E/F conversion program. Despite these massive changes, the P29G designation was retained, and the second machine, carrying the tactical code “Röd Urban” (Red U), was quickly nicknamed “Karpen” (“Carp”), due to its characteristic new intake shape, the long fin and its stocky shape.
The second P29G was ready for flight tests in August 1956, just in time to support the Saab 35’s ongoing development – the aircraft, which was eventually built to meet (and exceed) the Swedish Air Force’s 1949 supersonic interceptor requirement. The modifications proved to be successful and the P29G was, fitted with a 60° sweep wing and in clean configuration, able to achieve a maximum speed of 1.367 km/h (849 mph) in level flight, a formidable achievement (vs. the 1,060 km/h (660 mph) of the late J29F and the 1200 km/h (745 mph) of the J32B interceptor) for the post WWII design.
Several wing shapes and profiles were tested, including sweep angles from 25° to 63° as well as different shapes and profiles. Even though the machines carried provisions for the J29’s standard armament, the 20 mm cannons were normally not mounted and replaced with sensors and recording equipment. However, both machines were temporarily fitted with one or two guns in order to analyze the effects of firing the weapons at supersonic speed. Underwing ordnance was also almost never carried. In some tests, though, light bombs or unguided missiles were carried and deployed, or podded cine cameras were carried.
While the second P29G was used for high speed trials, the first machine remained in its original guise and took over low speed handling tests. Thanks to the unique wing switch mechanism, the supersonic research program could be held within a very tight schedule and lasted until late 1959. Thereafter, the P29Gs’ potential was of little use anymore, and the engine use agreement with the USA put an end to further use of the two aircraft, so that both P29Gs were retired from service in 1960. The 1st machine, outfitted with standard J29F wings and stripped off of its engines, remained in use as an instructional air at Malmslätt air base 1969, while the second machine was mothballed. However, both airframes were eventually scrapped in 1970.
General characteristics:
Crew: 1
Length: 11.66 m (38 ft 2 in) fuselage only,
13,97 m (45 ft 9 in) with pitot boom
Wingspan: varied*; 11.0 m (36 ft 1 in) with standard 25° sweep wings,
10.00 m (32 ft 9 ¾ in) with experimental 45° wings
Height: 4.54m (14 ft 10 ½ in)
Wing area: varied*; 24.15 m² (260.0 ft²) with standard 25° sweep wings
22.5 m² (242.2 ft²) with experimental 45° wings
Empty weight: 5,220 kg (11,500 lb)
Max. takeoff weight: 8,510 kg (18,744 lb)
Powerplant:
2× Westinghouse J34-WE-42 turbojets, each rated at 3,400 lbf (15 kN) dry thrust
and 4,200 lbf (19 kN) with full afterburner
Performance:
Maximum speed: 1.367 km/h (849 mph) were achieved*
Range: 790 km (490 mi)
Service ceiling: up to 17,250 m (56,500 ft)*
Rate of climb: up to 45 m/s (8,850 ft/min)*
*Varying figures due to different tested wing configurations
Armament:
None installed; provisions for 4x 20mm Hispano Mark V autocannon in the lower front fuselage.
Depending on the mounted wing type, various external loads could be carried, including a wide range of light bombs, 75 mm (3 in) air-to-air rockets, 145 mm (5.8 in) anti-armor rockets, 150 mm (6 in) HE (high-explosive) rockets or 180 mm (7.2 in) HE anti-ship rockets. Due to the lack of complex wiring or fuel plumbing, no guided weapons or drop tanks could be mounted, though.
The kit and its assembly:
Sweden is a prolific whiffing territory, and the Saab 29 offers some interesting options. This highly modified Tunnan, which is actually rather a kitbashing than a mere model kit modification, is/was a submission to the “More or less engines” group build at whatifmodelers.com in summer 2019.
I actually had the idea of a two-engine J29 in the back of my mind for a long time, spawned by a resin conversion set for the Hasegawa B-47 Stratojet kit that came with new intakes and exhaust sections for the four engine pods. The single engine pod parts had been spent a long time ago, but the twin engine parts were still waiting for a good use. Could the exhaust fit under/into a Tunnan…?
I even had a Matchbox J29 stashed away for this experiment long ago, as well as some donor parts like the wings, and the GB eventually offered the right motivation to put those things together that no one would expect to work.
So I pulled out all the stuff and started – a rather straightforward affair. Work started with the fuselage, which was, together with the (very nice) cockpit assembled OOB at first, the nose filled with as much lead as possible and with the lower rear section cut away, so the B-47 resin jet nozzles would end up at the same position as the original RM2B exhaust. Due to the pen nib fairing between them, though, the profile of the modified tail became (visually) more massive, and I had to fill some gaps under the tail boom (with styrene sheet and putty). The twin engines also turned out to be wider than expected – I had hoped for straight flanks, but the fuselage shape ended up with considerable bulges behind the landing gear wells. These were created with parts from drop tank halves and blended into the rest of the lower hill with PSR work. In the same wake the area under the fin was sculpted and re-created, too.
At that point it became clear that I had to do more on the fuselage, esp. the front end, in order to keep the aircraft visually balance. A convenient solution became an F-100 air intake, which I grafted onto the nose instead of the original circular and round-lipped orifice – with its sharp lip the Super Sabre piece was even a plausible change! The fuselage shapes and diameters differed considerably, though, more PSR became necessary.
Next came the wings: I had already set apart a pair of trapezoid wings with a 45° sweep angle – these were left over from a PM Model Ta 183 conversion some time ago. With their odd shape and size they were a perfect match for my project, even more so due to the fact that I could keep the original J29 wing attachment points, I just had to shorten and modify the trailing edge area on the fuselage. The result was very conclusive.
With the new nose and the wings in place, the overall proportions became clearer: still tail-heavy, but not unpleasant. At this time I was also certain that I had to modify the tail surfaces. The fin was too small and did not have enough sweep for the overall look, and the stabilizer, with its thick profile, rounded edges and the single, continuous rudder did not look supersonic at all. What followed was a long search in the donor banks for suitable replacements, and I eventually came up with a MiG-15 fin (Hobby Boss) which was later clipped at the top for a less recognizable profile. The stabilizers were more challenging, though. My solution eventually became a pair of modified stabilizers from a Matchbox Buccaneer(!), attached to the MiG-15 fin.
The design problems did not stop here, though: the landing gear caused some more headaches. I wanted to keep the OOB parts, but especially the main legs would leave the aircraft with a very goofy look through a short wheelbase and a rear axis position too much forward. In an attempt to save the situation I attached swing arms to the OOB struts, moving the axis maybe 5mm backwards and widening the track by 2mm at the same time. Not much in total, but it helped (a little, even though the aircraft is still very tail-heavy)
As a final addition – since the original, wing-mounted pitots of the J29 were gone now and would not go well with the wing-switching idea – I gave the P29G a large, nose-mounted pitot and sensor boom, placed on top of the nose. This part come, like the air intake, from an F-100.
Painting and markings:
I tend to be conservative when it comes to liveries for what-if models, and the P29G is no exception. At first, I thought that this build could become an operational supersonic daylight interceptor (the J29G), so that I could give the model full military markings and maybe a camouflage paint scheme. However, this idea would not work: the potential real life window for such an aircraft, based on the Saab 29, would be very narrow. And aircraft development in the late Fifties made quantum leaps within a very short period of time: While the J29A entered service, work on the Mach 2 Saab 35 was already underway – nobody would have accepted (or needed) a Mach 1 fighter, based on late Forties technology, at that time anymore, and there was the all-weather Saab J32B around, too. The update program with new wings and a more powerful afterburner engine was all that could be done to exploit the Tunnan’s potential, resulting in the (real world’s) J29E and F variants.
I eventually decided that the J29G would only be a prototype/research aircraft, consequently called P29G, and through this decision I became more or less settled upon a NMF finish with some colorful markings. Consequently, the model was painted with various shades of metal colors, primarily Polished Aluminum Metallizer from Humbrol, but also with Humbrol 191 and Matt Aluminum Metallizer as well as ModelMaster Steel Metallizer. Around the exhaust section, I also used Revell 91 (Iron) and ModelMaster Exhaust Metallizer. Some single panels and details were painted with Revell 99 (Aluminum), and I also used generic decal material in silver to simulate some smaller access panels. Grey decal sheet was used to simulate covers for the cannon nozzles.
The cockpit interior was painted, according to Saab 29 standard, in a dark greenish-grey (Revell 67), and bluish grey was used inside of the landing gear wells (Revell 57). The pitot boom received black and white stripes.
For markings I let myself get inspired from the real world Saab 29 and 32 prototypes, which were all marked with a colored “U” tactical code on the fin and also on the front fuselage, simply meaning “Utverding” (= “Test”). I found four red decals, and I also gave the aircraft a yellow cheatline, lent from an Airfix F-86D decal sheet. The Swedish roundels come from a generic aftermarket sheet, most stencils were taken from the Revell OOB sheet and a Printscale J29 sheet.
Before the model was sealed with semi-gloss acrylic varnish from Italeri, some grinded graphite was rubbed onto the rear fuselage, adding a metallic shine and simulating exhaust stains.
A thorough conversion – this has rather evolved into a kitbashing than just a kit conversion: not much from the original Matchbox J29 has been left over. But I like the outcome, even though things developed gradually from the simple idea of changing the number of engines on the Tunnan. One thing led to another. The resulting aircraft looks quite plausible, even though I am not totally happy with the landing gear, which appears to be rather far forward, despite surgical measures to mend the situation. The Ta 183 wings are a very good match, though, and I cannot help but recognize a certain French look, maybe due to the cruciform tail and the oval air intake? The P29G could also, with Argentinian marking, have become a revised version of the FMA Pulqui II?
S135-E-007515 (12 July 2011) --- With his feet secured on a restraint on the space station remote manipulator system's robotic arm or Canadarm2, NASA astronaut Ron Garan, Expedition 28 flight engineer, carries the pump module, which was the focus of one of the primary chores accomplished on a six and a half hour spacewalk on July 12. NASA astronaut Mike Fossum, also a station flight engineer, who shared the spacewalk with Garan, is out of frame. Photo credit: NASA
The Hispasat AG1 communications satellite completes the integration phase of testing in OHB System's cleanroom in Bremen, Germany. Hispasat AG1 will provide Spain, Portugal, the Canary Islands and the Americas with faster multimedia services through its reconfigurable Redsat payload.
AG1 is now at the IABG (Industrieanlagen-Betriebsgesellschaft) in Ottobrunn, Germany, undergoing environmental impact testing. There it will be placed in the thermal-vacuum chamber and its systems tested under ultra-high and low temperatures to simulate the conditions in space.
AG1 is the first satellite to use Europe’s new SmallGEO platform, developed through a public–private partnership between ESA and OHB. SmallGEO will strengthen the position of European industry in the commercial telecommunications market, expanding the current range of available products.
Credit:OHB
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based on historical facts. BEWARE!
Some background:
Armored wheeled vehicles were developed early in Germany, since they were not subject to the restrictions of the Versailles Treaty. The Sd.Kfz. 234 (Sonderkraftfahrzeug 234, or Special Purpose Vehicle 234) belonged to the ARK series (the type designation of the chassis) and was the successor to the earlier, eight-wheeled Sd.Kfz. 231/232/233 family. The Sd.Kfz. 234 incorporated several innovative features, including a monocoque chassis with eight wheels, and an air-cooled Tatra 103 diesel engine for use in North Africa. The latter gave the vehicle an extraordinary range of more than 600 miles (1.000 km). The vehicle had eight-wheel steering and drive and was able to quickly change direction thanks to a second, rear-facing, driver's seat. Chassis were built by Büssing-NAG in Leipzig-Wahren, while armoured bodies were provided by Deutsche Edelstahlwerke of Krefeld and turrets by Daimler Benz in Berlin-Marienfelde and Schichau of Elbing, with engines from Ringhoffer-Tatra-Werke AG of Nesseldorf.
The first and possibly best known version to reach frontline service was the Sd.Kfz. 234/2 ‘Puma’. It had a horseshoe-shaped turret armed with a 5cm L/60 gun, which was originally intended for the VK 1602 Leopard light tank. Even though it was a reconnaissance vehicle, the armament made it possible to take on lighter armored vehicles, and it was produced from late 1943 to mid-1944. This variant was replaced in production by the second version, the Sd.Kfz. 234/1, which had a simpler open turret (Hängelafette 38) armed only with a light 2 cm KwK 38 gun; it was manufactured from mid-1944 to early 1945.
The SdKfz 234/3, produced simultaneously with the 234/1, served as a support for the reconnaissance vehicles with more firepower. It had an open-topped superstructure, in which a short-barreled 7.5cm K51 L/24 gun was installed. This gun was intended primarily for use against soft targets, but when using a hollow charge shell, the penetration power exceeded that of the 5cm L/60 gun. This variant was produced from mid-1944 to the end of 1944, before switching production to the 234/4 and other variants. The Sd.Kfz. 234/4 replaced the L/24 gun with the 7.5cm L/46 PaK 40. This was yet another attempt to increase the mobility of this anti-tank gun; however, with this weapon the 234 chassis had been stretched to its limits, and it only carried limited ammunition (twelve rounds) due to lack of storage space. This variant was manufactured from the end of 1944 on in limited numbers.
Another interesting use of the chassis was the Sd.Kfz 234/6. When, towards late 1945, the Einheitschassis for the German combat tanks (the ‘E’; series) reached the front lines, several heavily armed anti-aircraft turrets had been developed, including the 30mm Kugelblitz, based on the outdated Panzer IV, the ‘Coelian’ turret with a twin 37mm cannon (mounted on the Panzer V Panther hull), but also twin 55 and even 88mm cannons on the new E-50, E-75 and E-100 chassis'. With alle these new vehicles and weapons, firepower was considerably increased, but the tank crews still had to rely on traditional visual tracking and aiming of targets. One potential solution for this flaw, in which the German Heeresleitung was highly interested from the start, was the use of the Luftwaffe’s radar technology for early target identification and as an aiming aid in poor weather conditions or at night. The German Luftwaffe first introduced an airborne interception radar in 1942, but these systems were still bulky and relied upon large bipolar antenna arrays. Esp. the latter were not suitable for any use in a ground vehicle, lest to say in a tank that could also carry weapons and ammunition as an independent mobile weapon system.
A potential solution at least for the mobility issue appeared in late 1944 with the development of the FuG 240 ‘Berlin’, a new airborne interception radar. It was the first German radar to be based on the cavity magnetron, which eliminated the need for the large multiple dipole-based antenna arrays seen on earlier radars, thereby greatly increasing the performance of the night fighters which carried the system. The FuG 240 was introduced by Telefunken in April 1945, primarily in Junkers Ju 88G-6 night-fighters, behind a streamlined plywood radome in the aircrafts’ nose. This so greatly reduced drag compared to the late-model Lichtensteins and Neptun radars that the fighters regained their pre-radar speeds, making them much more effective esp. against heavy and high-flying Allied bombers. The FuG 240 was effective against bomber-sized targets at distances of up to 9 kilometers, or down to 0.5 kilometer, which, as a side benefit, eliminated the need for a second, short-range radar system.
Right before the FuG 240's roll-out with the Luftwaffe the Heer insisted on a ground-based derivative for its anti-aircraft units. The Luftwaffe reacted very reluctantly, but heavy political pressure from Berlin convinced the RLM to share the new technology. Consequently, Telefunken was ushered to adapt the radar system to armored ground vehicles in February 1945.
It soon became clear that the FuG 240 had several drawbacks and was not perfectly suited for this task. Ground clutter and the natural horizon greatly limited the system's range, even though its 9 km range made high-altitude surveillance possible. Furthermore, the whole system, together with its power supply and the dirigible dish antenna, took up a lot of space. Its integration into an autonomous, tank-based anti-aircraft vehicle was still out of reach. The solution eventually came as a technical and tactical compromise: armed anti-aircraft tanks were to be grouped together in so-called Panzer-Fla-Züge, with an additional radar surveillance and guidance unit, so that the radar could guide the tank crews towards incoming targets, which would still rely on individual visual targeting.
The first of these dedicated guidance vehicles became the ‘Funkmess-/Flak-Kommandowagen Sd.KfZ 234/6’, which retained its secondary reconnaissance role. Together with Telefunken, Daimler Benz developed a new turret with a maximum armor of 30mm and a commander's cupola that would hold most of the radar equipment. This was christened ’Medusa’, after the monster from Greek mythology with snake hair and a petrifying sight, and during the system’s development phase, the radar's name was adopted for the whole vehicle, even though it never was official.
The turret held a crew of two, while the Sd. Kfz 234 chassis remained basically unchanged. Despite the cramped turret and the extra equipment, the Sd.Kfz. 234/6 was not heavier than its earlier brethren, because it remained unarmed, just a manually-operated FlaMG on the turret roof was available for self-defense. A heavier armament was not deemed necessary since the vehicle would either stay close to the heavily armed tanks it typically accompanied, or it would undertake lone reconnaissance missions where it would rely on its high speed and mobility. The vehicle's crew consisted of four: a driver in the front seat, a commander and a radar operator in the turret and a radio operator/second driver in the hull behind the turret, facing rearwards.
The Medusa antenna array was installed at the turret's front. The dish antenna, hidden under a hard vinyl cover, had a diameter of 70cm (27 1/2 inches), and it was directly adapted from the airborne FuG 240. Power output was 15kW, with a search angle of +80/− 5° and a frequency range: 3,250–3,330MHz (~10 cm). Range was, like the airborne variant, 0.5–9.0 kilometer. Power came from a separate generator directly attached to the vehicle’s Tatra diesel engine, hidden under an armored fairing on the bonnet that partly obscured the rear driver's field of view.
Beyond the radar system, the vehicle was furthermore equipped with a visual coincidence range finder, installed right through the turret. The system worked as follows: Light from the target entered the range finder through two windows located at either end of the instrument. At either side, the incident beam was reflected to the center of the optical bar by a pentaprism, and this optical bar was ideally made from a material with a low coefficient of thermal expansion so that optical path lengths would not change significantly with temperature. The reflected beam first passed through an objective lens and was then merged with the beam of the opposing side with an ocular prism sub-assembly to form two images of the target which were viewed by the observer through the eyepiece. Since either beam entered the instrument at a slightly different angle the resulting image, if unaltered, would appear blurry. Therefore, in one arm of the instrument, a compensator was integrated which could be adjusted by the operator to tilt the beam until the two images matched. At this point, the images were said to be in coincidence. The degree of rotation of the compensator determined the range to the target by simple triangulation, allowing the calculation of the distance to the observed object.
The optical bar had a span of 230 cm (90.75 in) and went right through the turret, just above the radar device installation. For the most effective range it even protruded from the turret on both sides like pylons, an arrangement that quickly earned the vehicle several nicknames like ‘Hirsch’, ‘Zwoender’ (a young stag with just two antlers) or ‘Ameise’ (ant). Fixed target reading with the rangefinder was effective on targets from 2,700 to 14,500 yards. Aerial courses could be recorded at all levels of flight and at a slant range between 4,000 and 12,000 yards - enough for visual identification beyond the group's effective gun ranges and perfectly suitable for long range observation.
The first Sd.Kfz. 234/6s reached, together with the first new FlaK tanks, the front units in summer 1945. Operating independently, they were primarily allocated to the defense of important production sites and of the city of Berlin, and they supported tank divisions through visual reconnaissance and general early warning duties. In due course they were supported and partly replaced by the bigger and more capable ‘Basilisk’ system, which had, due to the sheer bulk of the equipment, to be mounted on a tank chassis (initially on the Panzer V ‘Panther’ as the Sd.Kfz. 282/1 and from early 1946 onwards on the basis of the new Einheitspanzer E-50 hull as the Sd.Kfz. 282)
Operationally, the Sd. Kfz 234/6 was surprisingly successful, even though the radar remained capricious, its performance very limited and the unarmored equipment at the turret’s front was easily damaged in combat, even by light firearms. But the Sd.Kfz 234/6 offered, when the vehicle was placed in a location with a relatively free field of view (e. g. on a wide forest clearance or in an open field), a sufficient early warning performance against incoming bombers at medium to high altitudes, esp. when the general direction of incoming aircraft was already known.
The radar system even allowed a quick alert against low-flying aircraft, esp. when operating from higher ground. The radar information reduced the anti-aircraft tank/gun crews' reaction time considerably and allowed them to be prepared for incoming targets at the right altitude, direction and time. Hit probability was appreciably improved since quick passes of aircraft could be pre-determined.
Until the end of hostilities, probably fifty Sd.Kfz 234/6 were built new or converted from existing 8x8 chassis. Beyond this, the relatively light ‘Medusa’ device was furthermore mounted on outdated tracked armored vehicles like the Panzer III and IV, of which another forty vehicles were produced as Funkmess-/Flak-Kommandowagen III and IV.
Specifications:
Crew: Four (commander, radar operator, driver, radio operator/2nd driver)
Weight: 11,500 kg (25,330 lb)
Length: 6.02 m (19 ft 9 in)
Width: 2.36 m (7 ft 9 in)
Height: 2.84 meters (9 ft 4 in) w/o AA machine gun
Suspension: Wheeled (Tires: 270–20, bulletproof), with leaf springs
Track width: 1.95 m (6 ft 4 1/2 in)
Wading depth: 1.2 m (3 ft 11 in)
Trench crossing capability: 2m (6 ft 6 1/2 in)
Ground clearance: 350 mm (13 3/4 in)
Climbing capability: 30°
Fuel capacity: 360 l
Fuel consumption: 40 l/100 km on roads, 60 l/100 km off-road
Armor:
9-30 mm (.35-1.18 in)
Performance:
Maximum road speed: 80 km/h (49 mph)
Operational range: 950 km (590 mi)
Power/weight: 19 PS/t
Engine:
Air-cooled 14,825 cc (905³ in) Tatra 103 V12 diesel engine,
with 157 kW (220 hp) output at 2.200 RPM
Transmission:
Büssing-NAG "GS" with 3 forward and reverse gears, eight-wheel drive
Armament:
1× anti aircraft 7.92 mm Maschinengewehr 42 with 2.800 rounds
The kit and its assembly:
This whiffy and almost Ma.K-looking vehicle was inspired by the late WWII anti-aircraft tanks that never made it into hardware. I wondered how the gap between the simple visual aiming and the next logical step to surveillance and tracking radars could have been achieved, and the German airborne radars were a suitable place to start.
The idea of a dedicated vehicle was a logical step, since it would take many more years to develop a system that would be compact enough to be carried together with effective armament in just a single vehicle. It would take until the Sixties that such stand-alone systems like the Soviet ZSU-23-4 (1965) or the AMX-13 DCA (1969) would be produced.
I chose the light Sd.Kfz. 234 as basis because I do not think that a full armored tank would be devoted to a limited radar operation role, and instead of relying on heavy armor I deemed a light but fast vehicle (just like many other later AA tanks) to be the more plausible solution.
Basically, this is an OOB Hasegawa Sd.Kfz. 234/3, the “Stummel” with the short 7.5cm gun and an open hull. The latter was closed with 1mm styrene sheet and a mount for a turret added.
The turret itself is based on an Italeri Matilda Mk. II turret, but with a highly modified front that holds a resin ‘Cyrano’ radar (actually for an 1:72 Mirage F.1C) on a movable axis, an added rear extension and the antler fairings for the visual coincidence range finder. As a side note, similar systems were to be integrated into German late WWII combat tanks (e. g. in the Schmalturm), too, so this is another plausible piece of technology.
A German tank commander figure (from a vintage ESCI kit) populates the open hatch of the commander's cupola, the AA machine gun with its mount is an addition from the scrap box.
On the hull, the only modification is the additional generator fairing above the engine, for a slightly modified silhouette.
Painting and markings:
The turret looks weird enough, so I wanted a simple, yet typically late-WWII-German camouflage. I settled upon a geometric variation of the Hinterhalt three-tone scheme, primarily with dark yellow and olive green fields and stripe and a few red brown additions - inspired by a real late war Panther tank.
The basic color is RAL 7028 (modern variant, though), applied from the rattle can on the semi-finished hull and turret as a primer. On top of that, the shapes were added with acrylic dark grey-green (RAL 7009, Revell 67) and red brown (Humbrol 180) with a brush. The less bright colors were chosen on purpose for a low contrast finish, and the edgy shapes add a slightly SF-ish look.
A black ink wash and some dry-brushing along the many edges were used to weather the model and emphasize details. After decals had been applied, the kit was sealed with matt acrylic varnish and some artist pigments were added around the wheels and lower hull in order to simulate dust and dirt. On the lower chassis, some pigments were also cluttered onto small patches of the acrylic varnish, so that the stuff soaks it up, builds volume and becomes solid - the perfect simulation of dry mud crusts.
A whiffy tank kit with a long background story - but the concept offers a lot of material to create a detailed story and description. And while the vehicle is a fantasy creation, it bears a weird plausibility. Should be a nice scenic addition to a (whiffy, too) German E-75 Flak tank (to be built some day)?
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based on historical facts. BEWARE!
Some background:
The Flakpanzer Coelian comprised a family of self-propelled anti-aircraft gun tanks, designed by Rheinmetall during World War II for the German armed forces. In the first years of the war, the Wehrmacht had only little interest in developing self-propelled anti-aircraft guns, but as the Allies developed air superiority, the need for more mobile and better-armed self-propelled anti-aircraft guns increased.
As a stopgap solution the Wehrmacht had adapted a variety of wheeled, half-track and tracked vehicles to serve as mobile forward air defense positions to protect armor and infantry units in the field as well as for temporary forward area positions such as mobile headquarters and logistic points. As Allied fighter bombers and other ground attack aircraft moved from machine gun armament and bombing to air-to-ground rockets, the air defense positions were even more vulnerable. The answer was to adapt a tank chassis with a specialized turret that would protect the gun crews while they fired upon approaching Allied aircraft.
Initial AA-tank designs were the ‘Möbelwagen’ and the ‘Wirbelwind’, effectively both conversions of refurbished Panzer IV combat tank chassis’ with open platforms or open turrets with four 20mm cannon. Alternatively, a single 37mm AA gun was mounted, too, resulting in the more effective ‘Ostwind’ tank – but all these vehicles were just compromises and suffered from light armor and lack of crew protection.
Further developments led to the ‘Kugelblitz’, another Panzer IV variant, but this time the ball-shaped turret was effectively integrated into the hull, resulting in a low silhouette and a fully protected crew. Another new feature was the use of the Mauser MK 103 machine cannon – a lightweight, belt-fed aircraft gun with a gas-powered action mechanism, first employed on board of the Hs 129 attack aircraft against ground targets, including tanks. The Mk 103 had a weight of only 141 kg (311 lb) and a length of 235 cm (93 in) (with muzzle brake). Barrel length was 134 cm (53 in), resulting in Kaliber L/44.7 (44.7 calibres).
Anyway, the Kugelblitz could only mount two of these guns in its very cramped and complicated tilting turret. Venting and ammunition feed problems could also not be solved, so that the innovative vehicle never made it beyond the prototype and evaluation stage, even though the integration of the Kugelblitz turret into the hull of the Jagdpanzer ‘Hetzer’ was considered for some time.
In parallel, the promising MK 103 was also tested in the four-gun carriage of the Wirlbelwind’s 20 mm Flakvierling 38 mount, resulting in the ‘3 cm Flakvierling 103/38’ and the respective ‘Zerstörer 45’ tank prototype. But this was, effectively, only a juiced up version of the obsolete ‘Wirbelwind’, again with only a roofless and vulnerable turret and the obsolete Panzer IV as base. The ‘Zerstörer 45’ was consequently rejected, but the firepower of the four guns was immense: Rate of fire of a single MK 103 was 400 - 450 RPM, and the rounds carried three times as much explosive charge as a Soviet 37 mm round. Both HE/M and APCR rounds were available for the MK 103. Muzzle velocity was 860-940 m/sec, paired with a high degree of accuracy. The armor penetration for APCR was 42–52 mm (1.7–2.0 in) / 60° / 300 m (980 ft) or 75–95 mm (3.0–3.7 in) / 90° / 300 m (980 ft) – more than enough for aircraft, and even dangerous for many combat tanks when hitting more lightly armored areas. Anyway, it was not possible to combine four of these 30mm guns with a favorably shaped, completely enclosed turret for an effective front line anti-aircraft tank that could stand its own among the armored combat units.
The solution to this problem eventually materialized in 1943 with the decision to completely abandon the limiting Panzer IV chassis and build a new generation of anti-aircraft tanks on the basis of the larger (and heavier) Panzer V medium battle tank, the ‘Panther’. Its chassis had in the meantime become available in considerably numbers from damaged and/or recovered combat tanks, and updated details like new turrets or different wheels were gradually introduced into production and during refurbishments.
The Panther could mount a considerably larger and heavier turret than the previous standard tank chassis like the Panzer III and IV, and this potential was full exploited – as well as the possibility to increase the weapon system’s weight, thanks to the sturdier chassis. Rheinmetall’s new, fully enclosed, 360° rotating turret could carry a wide array of weapons and ammunition (all were belt-fed), a crew of three and also offered a good protection through a sloped, frontal armor of 70mm thickness. Traverse and elevation of the turret was hydraulic, allowing a full elevation in just over four seconds, and a 360° traverse in 15.5 seconds. The initial version was armed with two 3.7 cm FlaK 43 guns, as a compromise between range, firepower and rate of fire. Beyond this initial variant, Rheinmetall developed the ‘Coelian’ turret in various versions, too, including fully enclosed turrets with a single 55 mm gun and with four 20mm MG 151/20 guns.
Eventually, in May 1944, a complete family of turrets with different armament options was cleared for production: the standard Coelian I, with a revised mount for the twin 3.7 cm FlaK 43 guns, a heavier variant with twin 55 mm guns against larger, high-flying targets (Coelian II; the guns were based on another aircraft weapon, the MK 214), and finally the Coelian III with four Mk 103 cannon against low-flying attack aircraft and soft/lightly armored ground targets. The variant with four 20 mm guns had been dropped, since it did not offer and added value compared to the Coelian III. All these vehicles ran under the SdKfz. 171/3 designation, with suffixes (A-C) to distinguish their armament in a more or less standardized turret.
Even though ground-based, mobile radar systems were under development at that time, all these turrets had to rely only on optical sensors, even though very effective optical rangefinders were introduced. All the turrets of the Coelian family were to be mounted on revamped Panzer V chassis, simply replacing the former combat tank turrets (either the original production turret from the A, D and G variant or the newly introduced Schmalturm from the F version). Theoretically, they could have also been mounted onto the Panzer VI ‘Tiger’ chassis, but due to this type’s weight and complexity, this was not carried out.
However, the SdKfz. 171/3 Panther/Coelian family designation had in the meantime also just become an interim solution: Plans had been made to start the production of a completely new, simplified tank vehicle family, the so-called ‘Einheitspanzer’. The resulting standard combat tanks (called E-50 and E-75, based on their weight class in tonnes) and their respective hulls would be based on the large Königstiger battle tank, and potentially accept even bigger turrets and weapons. Consequentially, while production of the Coelian turrets and the conversion of 2nd hand and by the time also new Panther hulls of all variants was just gaining momentum in late 1944, work for the new Einheitspanzer tanks and their weaponry had already started.
Roundabout 300 Coelian tanks reached frontline units, two third of them were factory-built, and in the course of early 1945 the Coelian family had gradually replaced most of the outdated Panzer IV AA variants and SPAAGs with open turrets. The Coelian tanks were soon joined by the newly produced, dedicated Flakpanzer variants of the Einheitspanzer family, including a twin 55 mm gun on the E-50 chassis and also a monstrous 140 ton anti-aircraft variant of the heavy E-100 chassis, equipped with an automatic twin 8.8cm Flak in a fully enclosed and heavily armored turret.
Specifications:
Crew: Five (commander, gunner, loader/2nd gunner, driver, radio-operator/hull machine gunner)
Weight: 44.8 tonnes (44.1 long tons; 49.4 short tons)
Length: 6.87 m (22 ft 6 in)
Width: 3.42 m (11 ft 3 in) with side skirts
Height: 3.13 m (10 ft 3 in)
Suspension: Double torsion bar, interleaved road wheels
Fuel capacity: 720 litres (160 imp gal; 190 US gal)
Armor:
15–80 mm (0.6 – 3.15 in)
Performance:
Maximum road speed: 46 km/h (29 mph)
Operational range: 250 km (160 mi)
Power/weight: 15.39 PS (11.5 kW)/tonne (13.77 hp/ton)
Engine:
Maybach HL230 P30 V-12 petrol engine with 700 PS (690 hp, 515 kW)
ZF AK 7-200 gear; 7 forward 1 reverse
Armament:
4× 30 mm (1.18 in) MK 103 machine cannon with 3.600 rounds
1× 7.92 mm MG 34 machine gun in the front glacis plate with 2.500 rounds
The kit and its assembly:
This was a spontaneous build, in the wake of other recent whif tanks and using some leftover parts from the kit pile(s). Things started with a KORA 1:72 resin conversion kit with a 2x 37mm FlaK Coelian turret for a Panther chassis – but with broken and bent gun barrels. I had actually stashed the parts away for a potential mecha build/conversion, long ago, but while doing legwork for late German WWII tanks I recently came again across the various anti-aircraft tank designs. And I wondered if mounting the Coelian turret on a Panzer IV chassis would be possible and lead to a compact (and whiffy) new vehicle?
Well, it would not work, because the Coelian turret needs a considerably bigger turret bearing diameter than anything the Panzer IV hull could realistically handle (even the Panther’s Schmalturm is actually a little too wide…), and so I folded the idea up again and put it onto the “vague ideas” pile.
…until I stumbled upon the leftover hull from a Hasegawa Panther Ausf. F in the donor kits pile, which had originally given both of its OOB turrets (a Schmalturm and a standard model) to other conversions. While mating the Coelian turret with its originally intended hull was not a sexy project, I eventually did so, because I could effectively use two leftovers for something sound and well-balanced.
Concerning the assembly phase, there’s not much to tell about the Hasegawa Panther Ausf. F. Fit is good, a simple kit, and it comes, as a benefit, with optional all-steel wheels which I used for my conversion, changing the overall look to a true late war model. Only the opening for the turret had to be widened in order to accept the new resin turret.
The latter only consists of two parts: the massive core section and a separate weapon mount. The latter was in so far modified that I added a simple metal peg which can be switched between two holes in the turret hull, for two gun positions.
Since the original gun barrels had to be replaced, anyway, I did a thorough (and fictional) modification: I used four 1:48 20 mm brass barrels for a Flak 38 Flakvierling (from RB Models) and mounted them in two staggered pairs onto the original cannon fairing. The resulting gun array looks impressive and even realistic, and, thanks to the scale-o-rama effect, the 1:48 parts have the perfect size for 30 mm cannon barrels in 1:72!
Painting and markings:
Something “German”, but nothing spectacular, so I ended up with another variant of the Hinterhalt scheme, found on a Jagdpanther from the Ardennenoffensive period. In this case, the prominent colors are Dunkelgelb and Olivgrün in broad stripes, separated by blurred, thin lines made of Rotbraun.
As a little twist I wanted to modify the scheme in so far that this vehicle was to show its conversion heritage in a workshop, so hull and turret received different basic tones as an initial step.
The hull and all wheels were painted with matt RAL 7028 (a modern equivalent to the WWII Dunkelgelb), while the turret received a red primer coat with Oxidrot (RAL 3009). On top of these, wide green bands (RAL 6003 from Modelmaster) and separating russet (Humbrol 113) stripes were painted with brushes. In order to brighten up the relatively dark turret, some yellow mottles were added on the Oxidrot areas (using Revell 16).
Once dry, the whole surface received a sand paper treatment, so that the RAL 7028 would shine through here and there, as if worn out. After a dark brown wash, details were emphasized with dry-brushing in light grey and beige. Decals were puzzled together from various German tank sheets, and the kit finally sealed with matt acrylic varnish.
The black vinyl tracks were also painted/weathered, with a wet-in-wet mix of black, iron and red brown (all acrylics). Once they were mounted into place, mud and dust around the running gear and the lower hull was simulated with a greyish-brown mix of artist mineral pigments.
A bit of recycling and less exotic than originally hoped for – but it’s still a whiffy tank model, and its proximity to the real but unrealized Coelian project makes this one even more subtle. Pile reduction, one by one…
In this dramatic scene, an unnamed crater in Mercury's northern volcanic plains is bathed in darkness as the sun sits low on the horizon. Rising from the floor of the crater is its central peak, a small mountain resulting from the crater's formation. A central peak is a type of crater morphology that lies between "simple" and "peak ring" in the range of crater morphology on Mercury.
This image was acquired as a high-resolution targeted observation. Targeted observations are images of a small area on Mercury's surface at resolutions much higher than the 200-meter/pixel morphology base map. It is not possible to cover all of Mercury's surface at this high resolution, but typically several areas of high scientific interest are imaged in this mode each week.
The MESSENGER spacecraft is the first ever to orbit the planet Mercury, and the spacecraft's seven scientific instruments and radio science investigation are unraveling the history and evolution of the Solar System's innermost planet. During the first two years of orbital operations, MESSENGER acquired over 150,000 images and extensive other data sets. MESSENGER is capable of continuing orbital operations until early 2015.
Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
Follow us on Twitter
Like us on Facebook
Find us on Instagram
"Due to the city's unique geology, the Saint Petersburg Metro is one of the deepest metro systems in the world and the deepest by the average depth of all the stations. The system's deepest station, Admiralteyskaya, is 86 metres below ground"
Wikipedia
Van Damme State Park consists of beach and upland on the Mendocino Coast. Of all the park system's units along the Mendocino coast, Van Damme is perhaps the richest in terms of historical resources connected with the redwood lumber industry. Its story is a prime example of the struggles and eventual failures of a small, independent lumber operation.
Location/Directions
The park is located three miles south of the town of Mendocino on Highway 1. The highway runs through the park separating the campground and the Fern Canyon trail head to the east and the beach and parking lot to the west.
Seasons/Climate - Recommended clothing
The weather can be changeable; layered clothing is recommended.
Facilities - Activities
The park features the lush Fern Canyon scenic trail system; the Pygmy Forest where mature, cone-bearing cypress and pine trees stand six inches to eight feet tall; and the bog, or Cabbage Patch, where skunk cabbage grows in abundance. The park's ten miles of trail go along the fern-carpeted canyon of Little River. A paved road is used by joggers and bicyclists. The beach is popular with abalone divers.
Kayak Tours
Visitors can get a unique perspective of the coast line by taking the kayak tours, available through a concession agreement, at the Van Damme beach parking lot.
About the Park
Van Damme State Park was named for Charles Van Damme who was born at Little River in 1881, son of John and Louise Van Damme, early settlers of the region. John Van Damme and his wife were a Flemish couple. The patriarch of the family was born in Bredene, Belgium on May 22, 1832. New research indicates that John Van Damme was born in Bredene, Belgium, not Ostend. "Following the sea" for some years, Van Damme, upon his arrival in Mendocino County, later worked in the lumber mill at Little River. In this settlement all of his children were born, including Charles, whose love for the area prompted his acquiring, after some years as a successful operator of the Richmond-San Rafael ferry line, a plot of ground along the redwood coast. Upon his demise this area became a part of the State Park System in 1934.
In those early days lumbering was a major economic factor in the development of the northern coastline. Little River was built as a mill town in 1864 by Ruel Stickney, Silas Coombs and Tapping Reeves after the property, formally called Kents Cove, was purchased from W. H. Kent in 1862. Before long it had attained fame, not only as a lumber port, but as a shipyard as well. Alas, a stand of timber, if logged, does not last forever and by the end of the century, even though logging was periodically moved back into the headwaters of Little River, the mill was forced to close in 1893.
What was left of Little River soon deteriorated; the shipyard, the wharf, the town, several chutes for loading lumber and the lumber mill itself. Activity at the port, which once hummed with activity, declined. Little River's school, once attended by nearly 100 students, closed; its weekly steamship service ended, and a shipyard where, in 1874, Captain Thomas Peterson turned out full-size lumber schooners for the coast wide trade, phased out. Only the schooner Little River returned, to be wrecked on the very beach from which it originally departed.
Plagued by a lack of sufficient timber reserves, fires, substantial loss of business and trade, deterioration of the port's chutes and wharf, the end of coast wide shipping and the attendant decline in population, Little River reverted to a natural state. Its acquisition by the State Park System in 1934, and the subsequent addition of peripheral lands has preserved some of California's most interesting natural resources.
With the lightweight aluminium front and rear axles from the BMW M3/M4 models, forged 19-inch aluminium wheels with mixed-size tyres, M Servotronic steering with two settings and suitably effective M compound brakes, the new BMW M2 Coupe has raised the bar once again in the compact high-performance sports car segment when it comes to driving dynamics. The electronically controlled Active M Differential, which optimises traction and directional stability, also plays a significant role here. And even greater driving pleasure is on the cards when the Dynamic Stability Control system’s M Dynamic Mode (MDM) is activated. MDM allows wheel slip and therefore moderate, controlled drifts on the track.
THE SMADE JOURNAL | WWW.THESMADE.COM |
STAY CONNECTED TO THE SMADE JOURNALS IMAGE TEAM WITH THE LATEST HIGH DEFINITION IMAGES AND VIDEO
- Twitter - @smadejournal |
- Facebook.com - /smadejournal |
- Google - +smadejournal |
- Tumblr - smademeda |
- Instagram - @smadejournal |
- YouTube - the smade channel |
- Web - thesmade.com | www.smadeimages.com
On Saturday, October 7, more than 1,700 of Rochester Regional Health’s friends and employees gathered at the Joseph A. Floreano Rochester Riverside Convention Center for the system’s signature celebration.
The Washington State Ferry System's M/V Quinault approaches the Keystone landing on Whidbey Island.
This ferry served the route between Port Townsend and Whidbey Island. M/V Quinault began her life as a ferry on San Francisco Bay in 1927. The ship has been extensively modified since then. However, according to information posted on the ferry, she is still running on her original 1927 electric motors.
Update: On November 20, 2007, Washington State Ferries took the 80-year-old M/V Quinault out of service for safety reasons. The vessel went into drydock at Todd Pacific Shipyards in Seattle on November 28, 2007. Inspection of the hull revealed extensive corrosion and pitting, especially along the keel. Preliminary estimates were that at least 45 percent of the hull would have to be replaced before the ferry could be returned to service.
With that, I'd venture to say this photo documents the end of an era in marine transportation on Puget Sound.
It looks like even the craters on Mercury have heard of Bob Ross! The central peaks of this complex crater have formed in such a way that it resembles a smiling face. This image is oriented so north is toward the bottom.
This image was acquired as a high-resolution targeted observation. Targeted observations are images of a small area on Mercury's surface at resolutions much higher than the 200-meter/pixel morphology base map. It is not possible to cover all of Mercury's surface at this high resolution, but typically several areas of high scientific interest are imaged in this mode each week.
The MESSENGER spacecraft is the first ever to orbit the planet Mercury, and the spacecraft's seven scientific instruments and radio science investigation are unraveling the history and evolution of the Solar System's innermost planet. Visit the Why Mercury? section of this website to learn more about the key science questions that the MESSENGER mission is addressing. During the one-year primary mission, MESSENGER acquired 88,746 images and extensive other data sets. MESSENGER is now in a yearlong extended mission, during which plans call for the acquisition of more than 80,000 additional images to support MESSENGER's science goals.
Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
Follow us on Twitter
Like us on Facebook
Find us on Instagram
This image is excerpted from a U.S. GAO report:
www.gao.gov/products/GAO-16-127
AIR TRAVEL AND COMMUNICABLE DISEASES: Comprehensive Federal Plan Needed for U.S. Aviation System's Preparedness
a photo of my record collection, spliced up with some trippiness. as i near the end of my 365 project, i feel that my choice of subject is getting more "everyday" than ever...i'm kind of disappointed in myself for that, but i've also been pleased with what i've been able to make out of those "ordinary" photographs these past couple days.
like i said in the description a previous photo, when i started this 365 project, i thought it'd be a strictly photographic process, but it quickly morphed into mixed-media venture. most of the photos i've taken have been of ordinary household objects, edited into obscurity, then collaged or painted-on until they became something else entirely. a sort of visual alchemy, if you will.
looking back, i recognize that my hesitance in doing a more classical 365 project had a lot to do with the fact that the foundation of my photography skills is in self portraiture. when i first started taking photos at age 12, and took photos almost every day, was taking self-portraits -- and now, ten years later, as a 22 year old woman, i feel extremely averse to doing this.
around 2016 i started a series called "nouvelle lune" (new moon, but in french, because it sounded pretty, even though, embarrassingly, i cannot speak french beyond a few basic words) in which i took self portraits, but with my face obscured, or only a fragment of myself was visible. this was in response to a new-found awareness of how i had, to an extent, relied upon my appearance to drive my photography forth.
when i was twelve, thirteen, fourteen, i had a certain lack of self-awareness, even though i was a self-aware youngster. it was a youthful disregard for how others perceived me as a woman. a young girl might be aware of the fact there's men looking at her, and men can be creepy, et cetera, but she's doesn't likely understand the depths of this. at least i myself didn't, until i was 15, 16, 17, in full-on puberty, actually negotiating relationships with men who viewed me as a potential sexual conquest. i became fully aware of the fact that how i presented myself had great influence over my relations with men -- how i did my makeup, how i did my hair, how i dressed, the body language i used, the way i spoke, et cetera. and somewhere along the way i began feeling very uncomfortable with self-portraits -- whether those be a quick cell-phone selfie or an artistic self-portrait.
i struggled with acknowledging that i could easily gain attention via the strategic magic of a push-up bra, some concealer, and a few swipes of eye makeup. the selfies i posted on tumblr and instagram, and the carefully posed self-portraits i posted on flickr, got astronomically more attention than the pictures of trees & fields & trippiness that i was so proud of, that felt like i had accomplished something in creating. i understood why, human nature being what it is -- heterosexual men and their lust, heterosexual women and their constant self-monitoring because of having internalized the male gaze their whole life.
people told me i should use my appearance to my advantage. i considered it, toyed with it -- posting a selfie every few days, me sitting on my bedroom floor, sometimes in vaguely suggestive poses, making the faces alternating between demure and devious that most all women have learned to employ through the constant bombardment of the media. i imagined myself waking up every morning and painting my face and getting dressed up for the camera, performing femininity in whatever variation would be advantageous to my career.
but something always held me back from doing this. it was a combination of sheer lack of interest (i don't like wearing makeup, nor do i like wearing formal clothes unless i'm going out), the fact i have a history of eating disorders & know the self-monitering nature of selfies is capitally Bad for me, and, maybe most prominently, the fact that i knew this was essentially a form of manipulation -- the whole time i would be slathering on makeup and getting dressed in ways that accentuated and hid certain planes and edges of my body, i would be aware of the fact i was doing this in order to garner attention. sure, it would be for the benefit of my career -- but i would be doing this to gain leverage. not for myself. not for my personal betterment -- actually, probably to my personal detriment. it just didn't make sense to me.
more recently, i started thinking about this through a feminist lens. i asked myself -- why is it that for women to be successful in business these days, it's encouraged that they flaunt their appearance, while, for the most part, men don't need to do much else besides look presentable? isn't encouraging women to use their sex appeal to become more successful just feeding into the cycle of sexism? is it truly empowering to take selfies in a push-up bra to self-promote? sure, it might be in the moment -- "look at what i can do, look how i can garner attention doing this!" but isn't this ultimately just giving men what they want? isn't the playing field leveled more when a woman doesn't use anything but her intelligence and talents to build her empire, just as a man would?
i'm still contemplating this regularly. it's a complex issue with some elements i'm not quite sure how to reconcile -- i believe that self-portraiture is an art form, and as it was how i began with photography, it's near to my heart. but as i'm getting older and determining how i want to exist in the world as a female businesswoman, i'm not quite sure how i'm going to go forward with my self-portraiture. i don't believe that i'll never take a self-portrait again. but i know that when i take my next self portrait, face unobscured at all, i'll do it with full consciousness of how i'm presenting myself -- and i'll make sure that i'm presenting myself in a way that's in alignment with my goals -- to be seen as a woman with skill, intelligence, and self-possessedness, over a sexy woman who can be jerked off to.
i do believe that today's social-media saturated world is presenting an unprecedented issue for young girls. when i was young there were magazines and television shows that presented a female ideal, which undoubtedly had an effect on me. and when i was 12-13 in 2009/2010, there was some social media where my peers sought to present themselves in a semi-sexualized manner. but something seems very, very different today with the landscape of instagram, where extremely young girls take selfie after selfie, seemingly concerned with presenting themselves as attractive over all else. there's definitely been progress in society where young girls are being taken seriously as intelligent, talented humans capable of anything boys are, but there's also that other side of the coin that is increasingly problematic. i don't want children, but if i ever had a daughter, i would emphasize to her that her intelligence & self-contentedness is infinitely more important than her external appearance -- that she should spend more time forgetting the fact she has a face and body than being concerned about how her face and body look to others.
i'm not going to start another 365 project when this one is over on the 22nd, but my photography goal for the coming year is to experiment with taking pictures that look like they were taken on another planet...not sure how to explain this, but stay tuned.
(disclaimer: although i do question the pressure women feel to present themselves sexually, and how it can negatively impact them, i do not judge women for choosing to do this or think they are any less intelligent or talented for doing so -- after all, i don't believe it is womens' fault they feel pressured to present themselves in a sexual manner, i believe it is the system's fault. i support women making decisions for themselves based on what feels right to them, and i'm not here to tell other people what to do. i'm of the belief that everything in this universe is very complex and there's a lot of grey areas to be considered, though it's beneficial to reach a conclusion that feels "right" for one's own objectives & peace of mind. this was written from the perspective of someone sorting out what is right for them individually.)
The San Francisco Muni's 2019 heritage weekend September 7-8 featured the public debut of former Sacramento-Clay Line Car 19, built in 1883 by the Central Pacific Railroad Company in Sacramento. Now fully restored, it is the system's oldest (and largest) operating cable car. The weekend's festivities included public operation of the car on all of the surviving cable lines, including the non-revenue trackage.
More on this car's unique history can be found here: www.sfmta.com/blog/cable-car-19-make-historic-debut-muni-...
Federal Reserve Chairman Ben S. Bernanke and former Chairman Alan Greenspan talk before the start of the Federal Reserve System's Centennial Commemoration in Washington, D.C., held on December 16, 2013.
Regionalbahn Kassel hybrid tram-train 753 is a RegioCitadis type and was built by Alstom in 2005. It can run on the tramway system's electric supply or its own diesel engine on RegioTram routes. It is seen at Rathaus on 17 September 2007.
nrhp # 92001490- The Boston Mills Historic District is a historic district in the Cuyahoga Valley National Park in Northeast Ohio in the United States. With the opening of the Ohio and Erie Canal in 1827, people began to settle in this vicinity. By 1842, there was a water-powered mill, a large warehouse, a boat-yard, two stores and a hotel, and the population was around 300. A number of houses and other buildings dating back to that period remain.
With the decrease in boat traffic on the canal the village declined somewhat, but its fortunes revived with the construction of the railway in 1880 and the arrival of the Cleveland—Akron Bag Company in 1900. This industry drew in many Polish immigrant workers, and housing and commercial premises were built. Many of these buildings remain today, intermingled with the older properties.
Located in the Cuyahoga Valley National Park, the Village of Boston Mills reflects the early 19th-century canal era and the early 20th-century industrial era. With the opening of the Ohio and Erie Canal from Cleveland to Akron in 1827, the settlement along the Cuyahoga River began to grow. By 1842, Boston Mills had a population of approximately 300. A water-powered mill, a large warehouse, two stores and a hotel were some of the businesses in the village. Canal boat building was also an important industry with several dry docks in this inland port. Although the canal is not watered through the village now, one of the system's locks is still extant and several Greek Revival frame buildings date from the early 19th century. The Upwright and Wing house type reflects the extended New England settlement culture. This style is exemplified by the main gable-front two-story section containing a parlor and bedchambers, while the kitchen is located in a perpendicular one-story eave oriented section. The 1836 Boston Company Store, with its Federal and Greek Revival influences, now serves as a Cuyahoga Valley National Park visitor center and canal boat building museum.
Although the village stagnated with the end of canal packet, or passenger boat era, the arrival of the Valley Railway in 1880 and the Cleveland—Akron Bag Company in 1900 began a new period of growth. Connecting the industries of Cleveland with the coal fields in the south, the Valley Railway provided raw resources and access to markets for industrial operations. The Cleveland—Akron Bag Company brought with it many Polish immigrant workers and new houses—built and sold by the company. Several patterned concrete block houses and a school remain from this era, along with a company store building. A somewhat later 20th-century building, the M. D. Garage has been restored, including period gas pumps and signage, and now houses art exhibits. The compact nature of the village creates streetscapes that juxtapose the buildings from each era.
from Wikipedia
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based on historical facts. BEWARE!
Some background:
The ZSU-37-6 (“ZSU” stands for Zenitnaya Samokhodnaya Ustanovka / Зенитная Самоходная Установка = "anti-aircraft self-propelled mount"), also known as Object 511 during its development phase and later also as “ZSU-37-6 / Лена”, was a prototype for a lightly armored Soviet self-propelled, radar guided anti-aircraft weapon system that was to replace the cannon-armed ZSU-23-4 “Shilka” SPAAG.
The development of the "Shilka" began in 1957 and the vehicle was brought into service in 1965. The ZSU-23-4 was intended for AA defense of military facilities, troops, and mechanized columns on the march. The ZSU-23-4 combined a proven radar system, the non-amphibious chassis based on the GM-575 tracked vehicle, and four 23 mm autocannons. This delivered a highly effective combination of mobility with heavy firepower and considerable accuracy, outclassing all NATO anti-aircraft guns at the time. The system was widely fielded throughout the Warsaw Pact and among other pro-Soviet states. Around 2,500 ZSU-23-4s, of the total 6,500 produced, were exported to 23 countries.
The development of a potential successor started in 1970. At the request of the Soviet Ministry of Defense, the KBP Instrument Design Bureau in Tula started work on a new mobile anti-aircraft system as a replacement for the 23mm ZSU-23-4. The project was undertaken to improve on the observed shortcomings of the ZSU-23-4 (short range and no early warning) and to counter new ground attack aircraft in development, such as the A-10 Thunderbolt II, which was designed to be highly resistant to 23 mm cannons.
KBP studies demonstrated that a cannon of at least 30 mm caliber was necessary to counter these threats, and that a bigger caliber weapon would offer some more benefits. Firstly, to destroy a given target, such a weapon would only require from a third to a half of the number of shells that the ZSU-23-4’s 23 mm cannon would need. Secondly, comparison tests revealed that firing with an identical mass of 30 mm projectiles instead of 23 mm ammunition at a MiG-17 (or similarly at NATO's Hawker Hunter or Fiat G.91…) flying at 300 m/s would result in a 1.5 times greater kill probability. An increase in the maximum engagement altitude from 2,000 to 4,000 m and higher effectiveness when engaging lightly armored ground targets were also cited as potential benefits.
The initial requirements set for the new mobile weapon system were to achieve twice the performance in terms of the ZSU-23-4’s range, altitude and combat effectiveness. Additionally, the system should have a reaction time, from target acquisition to firing, no greater than 10 seconds, so that enemy helicopters that “popped up” from behind covers and launched fire-and-forget weapons at tanks or similar targets could be engaged effectively.
From these specifications KBP developed two schools of thought that proposed different concepts and respective vehicle prototypes: One design team followed the idea of an anti-aircraft complex with mixed cannon and missile armament, which made it effective against both low and high-flying targets but sacrificed short-range firepower. The alternative proposed by another team was a weapon carrier armed only with a heavy gatling-type gun, tailored to counter targets flying at low altitudes, esp. helicopters, filling a similar niche as the ZSU-23-4 and leaving medium to high altitude targets to specialized anti-aircraft missiles. The latter became soon known as “Object 511”.
Object 511 was based on the tracked and only lightly armored GM-577 chassis, produced by Minsk Tractor Works (MTZ). It featured six road wheels on each side, a drive sprocket at the rear and three return rollers. The chassis was primarily chosen because it was already in use for other anti-aircraft systems like the 2K11 “Krug” complex and could be taken more or less “off the rack”. A new feature was a hydropneumatic suspension, which was chosen in order to stabilize the chassis as firing platform and also to cope with the considerably higher all-up weight of the vehicle (27 tons vs. the ZSU-23-4’s 19 tons). Other standard equipment of Object 511 included heating, ventilation, navigational equipment, night vision aids, a 1V116 intercom and an external communications system with an R-173 receiver.
The hull was - as the entire vehicle - protected from small arms fire (7,62mm) and shell splinters, but not heavily armored. An NBC protection system was integrated into the chassis, as well as an automatic fire suppression system and an automatic gear change. The main engine bay, initially with a 2V-06-2 water-cooled multi-fuel diesel engine with 450 hp (331 kW) was in the rear. It was later replaced by a more powerful variant of the same engine with 510 hp (380 kW).
The driver sat in the front on the left side, with a small gas turbine APU to his right to operate the radar and hydraulic systems independently from the main engine.
Between these hull segments, the chassis carried a horseshoe-shaped turret with full 360° rotation. It was relatively large and covered more than the half of the hull’s roof, because it held the SPAAGs main armament and ammunition supply, the search and tracking radar equipment as well as a crew of two: the commander with a cupola on the right side and the gunner/radar operator on the left side, with the cannon installation and its feeding system between them. In fact, it was so large that Object 511’s engine bay was only accessible when the turret was rotated 90° to the side – unacceptable for an in-service vehicle (which would probably have been based on a bigger chassis), but accepted for the prototype which was rather focused on the turret and its complex weapon and radar systems.
Object 511’s centerpiece was the newly-developed Gryazev-Shipunov GSh-6-37 cannon, a heavy and experimental six-barreled 37mm gatling gun. This air-cooled weapon with electrical ignition was an upscaled version of the naval AO-18 30mm gun, which was part of an automated air defense system for ships, the AK-630 CIWS complex. Unlike most modern American rotary cannons, the GSh-6-37 was gas-operated rather than hydraulically driven, allowing it to "spin up" to maximum rate of fire more quickly. This resulted in more rounds and therefore weight of fire to be placed on target in a short burst, reduced reaction time and allowed hits even in a very small enemy engagement window.
The GSh-6-37 itself weighed around 524 kg (1.154 lb), the whole system, including the feed system and a full magazine, weighed 7,493 pounds (3,401 kg). The weapon had a total length of 5.01 m (16’ 7“), its barrels were 2.81 m (9’ 2½”) long. In Object 511’s turret it had an elevation between +80° and -11°, moving at 60°/sec, and a full turret rotation only took 3 seconds. Rate of fire was 4,500 rounds per minute, even though up to 5.500 RPM were theoretically possible and could be cleared with an emergency setting. However, the weapon would typically only fire short bursts of roundabout 50 rounds each, or longer bursts of 1-2 (maximum) seconds to save ammunition and to avoid overheating and damage – initially only to the barrels, but later also to avoid collateral damage from weapon operation itself (see below). Against ground targets and for prolonged, safe fire, the rate of fire could alternatively be limited to 150 RPM.
The GSh-6-37 fired 1.09 kg shells (each 338mm long) at 1,070 m/s (3.500 ft/s), developing a muzzle energy of 624,000 joules. This resulted in an effective range of 6,000 m (19.650 ft) against aerial and 7,000 m (23.0000 ft) against ground targets. Maximum firing range was past 7,160 m (23,490 ft), with the projectiles self-destructing beyond that distance. In a 1 sec. burst, the weapon delivered an impressive weight of fire of almost 100 kg.
The GSh-6-37 was belt-fed, with a closed-circuit magazine to avoid spilling casings all around and hurting friendly troops in the SPAAG’s vicinity. Typical types of ammunition were OFZT (proximity-fused incendiary fragmentation) and BZT (armor-piercing tracer, able to penetrate more than 60 mm of 30° sloped steel armor at 1.000 m/3.275’ distance). Since there was only a single ammunition supply that could not be switched, these rounds were normally loaded in 3:1 ratio—three OFZT, then one BZT, every 10th BZT round marked with a tracer. Especially the fragmentation rounds dealt extensive collateral damage, as the sheer numbers of fragments from detonating shells was sufficient to damage aircraft flying within a 200-meter radius from the impact center. This, coupled with the high density of fire, created a very effective obstacle for aerial targets and ensured a high hit probability even upon a casual and hurried attack.
The gun was placed in the turret front’s center, held by a massive mount with hydraulic dampers. The internal ammunition supply in the back of the turret comprised a total of 1.600 rounds, but an additional 800 rounds could be added in an external reserve feed bin, attached to the back of the turret and connected to the internal belt magazine loop through a pair of ports in the turret’s rear, normally used to reload the GSh-6-37.
A rotating, electronically scanned E-band (10 kW power) target acquisition radar array was mounted on the rear top of the turret that, when combined with the turret front mounted J-band (150 kW power) mono-pulse tracking radar, its dish antenna hidden under a fiberglass fairing to the right of the main weapon, formed the 1RL144 (NATO: Hot Shot) pulse-Doppler 3D radar system. Alongside, the 1A26 digital computer, a laser rangefinder co-axial to the GSh-6-37, and the 1G30 angle measurement system formed the 1A27 targeting complex.
Object 511’s target acquisition offered a 360-degree field of view, a detection range of around 18 km and could detect targets flying as low as 15 m. The array could be folded down and stowed when in transit, lying flat on the turret’s roof. The tracking radar had a range of 16 km, and a C/D-band IFF system was also fitted. The radar system was highly protected against various types of interference and was able to work properly even if there were mountains on the horizon, regardless of the background. The system made it possible to fire the GSh-6-37 on the move, against targets with a maximum target speed of up to 500 m/s, and it had an impressive reaction time of only 6-8 seconds.
Thanks to its computerized fire control system, the 1A27 was highly automated and reduced the SPAAG’s crew to only three men, making a dedicated radar operator (as on the ZSU-23-4) superfluous and saving internal space in the large but still rather cramped turret.
Development of Object 511 and its systems were kicked-off in 1972 but immediately slowed down with the introduction of the 9K33 “Osa” missile system, which seemed to fill the same requirement but with greater missile performance. However, after some considerable debate it was felt that a purely missile-based system would not be as effective at dealing with very low flying attack helicopters attacking at short range with no warning, as had been proven so successful in the 1973 Arab-Israeli War. Since the reaction time of a gun system was around 8–10 seconds, compared to approximately 30 seconds for a missile-based system, development of Object 511 was restarted in 1973.
A fully functional prototype, now officially dubbed “ZSU-37-6“ to reflect its role and armament and christened “Лена” (Lena, after the Russian river in Siberia), was completed in 1975 at the Ulyanovsk Mechanical Factory, but it took until 1976 that the capricious weapon and the 1A27 radar system had been successfully integrated and made work. System testing and trials were conducted between September 1977 and December 1978 on the Donguzskiy range, where the vehicle was detected by American spy satellites and erroneously identified as a self-propelled artillery system with a fully rotating turret (similar to the American M109), as a potential successor for the SAU-122/2S1 Gvozdika or SAU-152/2S3 Akatsiya SPGs that had been introduced ten years earlier, with a lighter weapon of 100-120mm caliber and an autoloader in the large turret.
The tests at Donguzskiy yielded mixed results. While the 1A27 surveillance and acquisition radar complex turned out to be quite effective, the GSh-6-37 remained a constant source of problems. The gun was highly unreliable and afforded a high level of maintenance. Furthermore, it had a massive recoil of 6.250 kp/61 kN when fired (the American 30 mm GAU-8 Avenger “only” had a recoil of 4.082 kp/40 kN). As a result, targets acquired by the 1A27 system were frequently lost after a single burst of fire, so that they had to be tracked anew before the next shot could be placed.
To make matters even words, the GSh-6-37 was noted for its high and often uncomfortable vibration and extreme noise, internally and externally. Pressure shock waves from the gun muzzles made the presence of unprotected personnel in the weapon’s proximity hazardous. The GSh-6-37’s massive vibrations shook the whole vehicle and led to numerous radio and radar system failures, tearing or jamming of maintenance doors and access hatches and the cracking of optical sensors. The effects were so severe that the gun’s impact led after six months to fatigue cracks in the gun mount, the welded turret hull, fuel tanks and other systems. One spectacular and fateful showcase of the gun’s detrimental powers was a transmission failure during a field test/maneuver in summer 1978 – which unfortunately included top military brass spectators and other VIPs, who were consequently not convinced of the ZSU-37-6 and its weapon.
The GSh-6-37’s persisting vibration and recoil problems, as well as its general unreliability if it was not immaculately serviced, could not be satisfactorily overcome during the 2 years of state acceptance trials. Furthermore, the large and heavy turret severely hampered Object 511’s off-road performance and handling, due to the high center of gravity and the relatively small chassis, so that the weapon system’s full field potential could not be explored. Had it found its way into a serial production vehicle, it would certainly have been based on a bigger and heavier chassis, e.g. from an MBT. Other novel features tested with Object 511, e.g. the hydropneumatic suspension and the automated 1A27 fire control system, proved to be more successful.
However, the troublesome GSh-6-37 temporarily attained new interest in 1979 through the Soviet Union’s engagement in Afghanistan, because it became quickly clear that conventional battle tanks, with long-barreled, large caliber guns and a very limited lift angle were not suited against small targets in mountainous regions and for combat in confined areas like narrow valleys or settlements. The GSh-6-37 appeared as a promising alternative weapon, and plans were made to mount it in a more strongly armored turret onto a T-72 chassis. A wooden mockup turret was built, but the project was not proceeded further with. Nevertheless, the concept of an armored support vehicle with high firepower and alternative armament would persist and lead, in the course of the following years, to a number of prototypes that eventually spawned the BMPT "Terminator" Tank Support Fighting Vehicle.
More tests and attempts to cope with the gun mount continued on a limited basis through 1979, but in late 1980 trials and development of Object 511 and the GSh-6-37 were stopped altogether: the 2K22 “Tunguska” SPAAG with mixed armament, developed in parallel, was preferred and officially accepted into service. In its original form, the 2K22 was armed with four 9M311 (NATO: SA-19 “Grison”) short-range missiles in the ready-to-fire position and two 2A38 30mm autocannons, using the same 1A27 radar system as Object 511. The Tunguska entered into limited service from 1984, when the first batteries, now armed with eight missiles, were delivered to the army, and gradually replaced the ZSU-23-4.
Having become obsolete, the sole Object 511 prototype was retired in 1981 and mothballed. It is today part of the Military Technical Museum collection at Ivanovskaya, near Moscow, even though not part of the public exhibition and in a rather derelict state, waiting for restoration and eventual display.
Specifications:
Crew: Three (commander, gunner, driver)
Weight: about 26,000 kg (57,300 lb)
Length: 7.78 m (25 ft 5 1/2 in) with gun facing forward
6.55 m (21 ft 5 1/2 in) hull only
Width: 3.25 m (10 ft 8 in)
Height: 3.88 m (12 ft 9 in) overall,
2.66 m (8 8 1/2 ft) with search radar stowed
Suspension: Hydropneumatic
Ground clearance: 17–57 cm
Fuel capacity: 760 l (200 US gal, 170 imp gal)
Armor:
Unknown, but probably not more than 15 mm (0.6”)
Performance:
Speed: 65 km/h (40 mph) maximum on the road
Climbing ability: 0.7 m (2.3')
Maximum climb gradient: 30°
Trench crossing ability: 2.5 m (8.2')
Fording depth: 1.0 m (3.3')
Operational range: 500 km (310 mi)
Power/weight: 24 hp/t
Engine:
1× 2V-06-2S water-cooled multi-fuel diesel engine with 510 hp (380 kW)
1× auxiliary DGChM-1 single-shaft gas turbine engine with 70 hp at 6,000 rpm,
connected with a direct-current generator
Transmission:
Hydromechanical
Armament:
1× GSh-6-37 six-barreled 37mm (1.5 in) Gatling gun with 1.600 rounds,
plus 800 more in an optional, external auxiliary magazine
The kit and its assembly:
This fictional SPAAG was intended as a submission to the “Prototypes” group build at whatifmodellers.com in August 2020. Inspiration came from a Trumpeter 1:72 2P25/SA-6 launch platform which I had recently acquired with a kit lot – primarily because of the chassis, which would lend itself for a conversion into “something else”.
The idea to build an anti-aircraft tank with a gatling gun came when I did research for my recent YA-14 build and its armament. When checking the American GAU-8 cannon from the A-10 I found that there had been plans to use this weapon for a short-range SPAAG (as a replacement for the US Army’s M163), and there had been plans for even heavier weapons in this role. For instance, there had been the T249 “Vigilante” prototype: This experimental system consisted of a 37 mm T250 six-barrel Gatling gun, mounted on a lengthened M113 armored personnel carrier platform, even though with a very limited ammunition supply, good only for 5 sec. of fire – it was just a conceptual test bed. But: why not create a Soviet counterpart? Even more so, since there is/was the real-world GSh-6-30 gatling gun as a potential weapon, which had, beyond use in the MiG-27, also been used in naval defense systems. Why not use/create an uprated/bigger version, too?
From this idea, things evolved in a straightforward fashion. The Trumpeter 2P25 chassis and hull were basically taken OOB, just the front was modified for a single driver position. However, the upper hull had to be changed in order to accept the new, large turret instead of the triple SA-6 launch array.
The new turret is a parts combination: The basis comes from a Revell 1:72 M109 howitzer kit, the 155 mm barrel was replaced with a QuickBoost 1:48 resin GSh-6-30 gun for a MiG-27, and a co-axial laser rangefinder (a piece of styrene) was added on a separate mount. Unfortunately, the Revell kit does not feature a movable gun barrel, so I decided to implant a functional joint, so that the model’s weapon could be displayed in raised and low position – primarily for the “action pictures”. The mechanism was scratched from styrene tubes and a piece of foamed plastic as a “brake” that holds the weapon in place and blocks the view into the turret from the front when the weapon is raised high up. The hinge was placed behind the OOB gun mantle, which was cut into two pieces and now works as in real life.
Further mods include the dish antenna for the tracking radar (a former tank wheel), placed on a disc-shaped pedestal onto the turret front’s right side, and the retractable rotating search radar antenna, scratched from various bits and pieces and mounted onto the rear of the turret – its roof had to be cleaned up to make suitable space next to the commander’s cupola.
Another challenge was the adaptation of the new turret to the hull, because the original SA-6 launch array has only a relatively small turret ring, and it is placed relatively far ahead on the hull. The new, massive turret had to be mounted further backwards, and the raised engine cowling on the back of the hull did not make things easier.
As a consequence, I had to move the SA-6 launcher ring bearing backwards, through a major surgical intervention in the hull roof (a square section was cut out, shortened, reversed and glued back again into the opening). In order to save the M109’s turret ring for later, I gave it a completely new turret floor and transplanted the small adapter ring from the SA-6 launch array to it. Another problem arose from the bulged engine cover: it had to be replaced with something flat, otherwise the turret would not have fitted. I was lucky to find a suitable donor in the spares box, from a Leopard 1 kit. More complex mods than expected, and thankfully most of the uglier changes are hidden under the huge turret. However, Object 511 looks pretty conclusive and menacing with everything in place, and the weapon is now movable in two axis’. The only flaw is a relatively wide gap between the turret and the hull, due to a step between the combat and engine section and the relatively narrow turret ring.
Painting and markings:
AFAIK, most Soviet tank prototypes in the Seventies/Eighties received a simple, uniform olive green livery, but ,while authentic, I found this to look rather boring. Since my “Object 511” would have taken part in military maneuvers, I decided to give it an Eighties Soviet Army three-tone camouflage, which was introduced during the late Eighties. It consisted of a relatively bright olive green, a light and cold bluish grey and black-grey, applied in large patches.
This scheme was also adapted by the late GDR’s Volksarmee (called “Verzerrungsanstrich” = “Distortion scheme”) and maybe – even though I am not certain – this special paint scheme might only have been used by Soviet troops based on GDR soil? However, it’s pretty unique and looks good, so I adapted it for the model.
Based upon visual guesstimates from real life pictures and some background info concerning NVA tank paint schemes, the basic colors became Humbrol 86 (Light Olive Green; RAL 6003), Revell 57 (Grey; RAL 7000) and Revell 06 (Tar Black; RAL 9021). Each vehicle had an individual paint scheme, in this case it was based on a real world NVA lorry.
On top of the basic colors, a washing with a mix of red brown and black acrylic paint was applied, and immediately dried with a soft cotton cloth so that it only remained in recesses and around edges, simulating dirt and dust. Some additional post-shading with lighter/brighter versions of the basic tones followed.
Decals came next – the Red Stars were a rather dramatic addition and came from the Trumpeter kit’s OOB sheet. The white “511” code on the flanks was created with white 3 mm letters from TL Modellbau.
The model received a light overall dry brushing treatment with light grey (Revell 75). As a finishing touch I added some branches as additional camouflage. These are bits of dried moss (collected on the local street), colorized with simple watercolors and attached with white glue. Finally, everything was sealed and stabilized with a coat of acrylic matt varnish and some pigments (a greyish-brown mix of various artist mineral pigments) were dusted into the running gear and onto the lower hull surfaces with a soft brush.
An effective kitbashing, and while mounting the different turret to the hull looks simple, the integration of unrelated hull and turret so that they actually fit and “work” was a rather fiddly task, and it’s effectively not obvious at all (which is good but “hides” the labour pains related to the mods). However, the result looks IMHO good, like a beefed-up ZSU-23-4 “Schilka”, just what this fictional tank model is supposed to depict.